Why is it that so many incredibly smart people who could literally do anything they want, work anywhere they want, build anything they want, maybe even the next revolutionary unicorns/decacorns, on their own terms, choose to work for companies who are actively choosing to destroy society and have a net negative impact on everyone?
Do they just don't care?
Is money/funding/prestige the only thing that matter to them?
Generally, extreme excellence in one domain is balanced by a lower-than-average (for a given value of 'average') performance, or attention, in some others. It is related to single-mindedness (is that a word!?) and possibly to individual mental and social make-up.
E.g. great scientists don't necessarily make good home-keepers (also insert famous memes about 'scatter-brained' and/or unkempt genii/geniuses).
I hesitate to use the word 'genius' for mere software developers in order not to devalue its meaning :P [tongue in cheek grinning emoticon here]
However, many extreme performers need, prefer, or desire to operate inside an ecosystem (bubble) that looks after and caters for their other needs so as not to distract them from what they consider most important to focus upon. Consider top-class sports people and the 'teams' of non-athletic support people they're often surrounded by.
The resulting effect could likely be described as a by-product of tunnel vision - anything outside their primary interest is a secondary consideration, if at all.
Also money. People want a decent day-to-day experience at their job and they want to be paid well.
How do you classify geniuses? How can you so broadly paint entire industries with the worst possible attribute? Why do you think these people aren't doing what they want? How do you think society is being destroyed?
Nearly every sentence you wrote has at least one naive assumption and a sweeping generality.
Banks and finance isn't inherently evil but banks that don't optimise the allocation of capital will have less capital and so matter less. Much like in Norm chompskys Manafacturing consent, there is no need for evil actors. The system rewards particular things and that leads to a series of incentives.
What would the "Moral" activity of smart people be? Say you create some simple definition of the most moral action and run with it. Would improving the worlds access to knowledge (Google) not be a part of that? Would connecting communities (Facebook) not be a part of that? Would allowing small sellers of nice products to sell without the hassle of the logistics of online sales not be a part of that (Amazon)? Would creating original media content not beholden to the demands of advertisers not be a part of that (Netflix)?
Would creating the best expression of the mobile device by integrating the hardware and software giving as many people as possible access to leading technology without them having to understand much with regards to the technicalities (I guess that's the apple way?)
Would optimising the allocation of capital so that people can have things before they can afford them not be a part of that? The facilitation of the dream of having it all now while you are young enough to enjoy it rather than saving up for a retirement where you then have a stroke so can do anything with the money you saved. (The situation my grandfather ended up in) Facilitated by the finance industry.
Sure these companies are not monistries. (Although were the preists in those always so angelic) They are not charities, but unlike charities they generate (correctly or not) the resources to aim at their goals.
If a super smart person wanted to target the dreamy goals these companies claim to address but had a better way to address them, what would that way be?
How can you change the world if you do not have the power to allocate capital? The answer is you can't.
Genius level intellect comes with a lot of problems - pessimism ranks highly because the foresight granted by intellect shows the huge combination of possible failures.
Negative emotion is felt more strongly than positive emotion in all humans so self doubt (illuminated by combinatorial scenario projections) tends to be higher in genius intellect.
Also many of them tend to have other problems at the extremes - anxiety, paranoia, mania, distrust, uncontrollable ego, combinations of these and more - this leads to many of the geniuses taking their paycheque and disappearing into escapism of drugs, alcohol, sex, video games, whatever - just to make it stop for a bit, just a little relief
And some geniuses aren’t industrial at all, and are happy with that, they are happy being kind and reliable and humble, they are not driven by money but the acquisition of knowledge for its own reward.
Maybe they just want comfort and know the statistics on how many startups fail and the insane amount of work and sacrifice a startup requires and it’s actually easier to get a well paying job and be more balanced.
The assumption that genius are always in the capitalistic, money driven, alert problem solving mode is a very American view of live, when indeed, just like intellect is NOT a single scalar dimension, genius is varied and colourful.
FAANGs have developed incentives for geniuses to favor them over less evil employers.