Comment by aleph_minus_one

> You don’t see investment bankers / lawyers / management consultants / etc. go on about side projects, leveling up their skills during the weekend, and other things that are considered completely normal in this industry.

I am very certain that you are at least wrong about management consultants. I know quite some who work on side projects (even though they barely have any time) and/or level up their skills during the few free hours on the weekend.