Is it OK that they pay themself market rates from that capital?
If investors feel that highly paid, highly qualified software engineers are not allowed to be founders unless they take significant pay cuts, I guess there will be alot fewer founders who are also highly qualified software engineers.
Not to imply it isn't worth it, but a lot of the time, especially with single digit millions funding rounds, it's a ton of work and personal responsibility for not that much money or budget (lots of managers would control way more). VCs are getting a good deal if they think you're going to work for anything materially below market.
For example, one can created huge value working at Netflix and Netflix pays top dollar for this. However, the value the engineer produces depends on the number of subscribers Netflix has, the content that they are able to provide, and the infrastructure to stream high quality videos.
The same engineer cannot produce the same market value if this person works by themselves in a start up. At the early stages it makes sense therefore to pay the rate that keeps the engineer productive, because the value they produce at early times is zero.