I made the leap into a weird industry (biotech) as a designer/engineer, and though I don't "fully regret it" I still see friends/peers build up a lot of wealth

I made the leap into a weird industry (biotech) as a designer/engineer, and though I don't "fully regret it" I still see friends/peers build up a lot of wealth that's simply not possible in this space. Yes, life's been more meaningful; we've treated patients and sent them home and that's a great feeling, but always with the question, "at what personal cost?"