Any people here who make decent money in a job they deem meaningless/useless to society and would rather switch to something useful but are afraid of making significantly less $?

Basically title. At the moment I make decent money and I’m trying to save… but I know my job is pretty much useless. I have been thinking about doing something more useful (teacher/social work/nurse or smth else) but honestly it’s so low-paid where I live that I have no balls to change, at least not right now. Am I alone who thinks like this?