It sounds like a lot, but when you consider is takes a few years (sometimes more) to figure out what you like. A few more to get good at it. And then you have maybe 20 peak years of productivity, you sure as hell don't want to spend any of it at something you can't respect.
When you are done with your career at 60 or 65, you want to be able to look back and say "I did this" or "I created that" or "I helped this many people", not "I worked at that shitty adware company for 2 years because they have me free food and beer"