"We have an industry that has a history of stinginess and that does not have a good history of giving back."

That doesn't match anything I've heard or read, from what I can tell tech entrepreneurs constantly give back, or at the least consistently invest back. I'm positive this is bias, but is there another industry that creates as many investors? Either angel or future VC partners?

That's not quite the right question, because of course finance would lead in number of investors total, but I mean like created company in industry, this case tech, then invested in more companies in that industry.