Why do Bishops and Priests get paid to preach instead of working like everyone else?

I’ve been a follower of Christ for five years now, and as a former Muslim, I’ve learned a lot about the hypocrisy of people and how religion can sometimes be used as a tool for personal gain. There’s a question that’s been on my mind for a long time, and I feel I need to express it. If these so-called “holy fathers” are truly doing God’s work, why don’t they live and work like everyone else? They’re being paid to preach, so isn’t it essentially just a job for them? It makes me question their sincerity when they’re compensated for what is supposed to be a divine mission. Take the Pope, for example. Living in a palace, surrounded by servants, and having his hand kissed by common people doesn’t exactly convey a message of humility or authenticity. To me, it feels contradictory to the values they claim to represent.