I am a professional software engineer working full time and making quite a decent living at it. I believe quite a bit that the AGPL3 or other strong copyleft licenses are the moral high road and would be quite happy to work on products using AGPL3.

In terms of monetization, I believe hosted SaaS AGPL3 solutions where companies offer support and maintenance is a reasonably viable business model. I am reasonably sure that B2B "enterprise" sales could be AGPL3 without significantly impinging upon cash flow. Generally it seems that enterprises are buying business solutions, not software; they are paying for the assurance that stuff works.