"Don't work hard, work smart". Often there's an inverse relationship between how hard the work is and how well it pays. Picking crops is famously the worst. But even in software, the hardest work I did was a 10-day stretch of 10-hour days in one of the lowest paid positions I had: between my €1k-ish/month passive income and the imputed income due to no longer needing to pay rent, I get more sitting on my arse than that job paid.

Same applies to expenses. Software is (or was) one of the few forms of labour that lent themselves to remote work, and remote works allows people to lower what are often the two biggest expenses: rent, and transport.