People seem to have this idea that the world should be "heads I win, tails you lose" in their own favor. I can't say that I blame them, it's incredibly depressing to see a company get rich off of your work. But it fails to take into account that a person might create absolutely nothing of value while they draw a paycheck/salary and in that case it's the company that loses, not them.

That's how things go in engineering, though, you generally don't get employed unless you're willing to sign over whatever IP you are going to generate at the job (and sometimes even off-the-clock ideas too).