The expected value from start-up shares is so low, you're bit of idiot if you're degrading your life for it.
Actual founder? Sure. Early employees get a raw deal. Honestly it better if you earn the most from salary, and invest the extra cash in startups. You'll get more equity.
The entire startup ecosystem is based on extracting from the economy people who are motivated, do their work efficiently and learn high skills, and giving them millionaire-or-bankrupt stakes to ensure they’re committed.