Good points! The issue that I see is that many (most?) people want a middle ground: On the one hand, it's not important to them to use some sort of viral copy

Good points! The issue that I see is that many (most?) people want a middle ground: On the one hand, it's not important to them to use some sort of viral copyleft license that forces people who use their project to make their code free. On the other hand, they don't want people who use their project to be aggressively anti-competitive or anti-developer. So for example, it would be fine if Apple charged for their OS and kept it closed source as long as they allowed anyone who wants to develop apps for their OS to do so.