We are complicit in our employer’s deeds

We need more developers start companies and not sell out.

I agree but I've seen this not work long-term. Entrepreneurs are inherently curious, distractible, and prone to move on to other projects. Any leader is prone to burnout.

I know a small company with a great founder who wanted to support clients, employees, and community as best he could. He did this for a decade, really well, then he got involved in other things which eventually consumed most of his time. For a few years he tried to hand the reins to his leadership team, but that didn't work very well so he sold the company. Now it's becoming just like everywhere else.