Yes, the sheikhs bring some element of madness into football and it is almost impossible to predict (with reliable accuracy) what will happen. As the saying goes, if a person cannot be bought with money, then he can be bought with big money

In general, the modern world is like this (rather strange) - you can work all your life and not earn anything, and someone who shoots a couple of successful tik-toks will fall into a trend and become a millionaire in a very short time. Therefore, the crazy money that football players receive now is more or less logical - after all, they give their whole lives to football (maybe except for Neymar, haha) and are not just lucky.
No they don't give their whole lives to football. Everyone who is playing in a first league and an average player with average income could stop at age 30 and celebrate for the rest of his life with some reasonable financial management. Sponsoring deals and all other enjoyable advantages excluded. A craftsman or a surgeon is dedicating their entire life to their profession and they have to go 40 years at least before they can retire. Really, I can't feel this empathetic aspect that you brought up for football players. Mbappe could have stopped playing at age 21 and he would never have to care about money again. More and more players get contracts with close to 10 million per year at the age of 20.