Why do some people indulge in depravity and laugh at those who want to make progress?

I don't understand the psychology of these people either, but I think they are self-indulgent, because they don't believe that hard work will pay off and that struggle will change their lives now. They don't believe that the future will be better, so they think that if they don't work hard, it is better to choose a posture that makes them feel comfortable, so they laugh at those who make progress and those who don't see the reality clearly. But no one knows whether the fact is as he imagined.