Money is useful, let's be clear, it is useful for everyone but to think that it is the goal to be pursued by overlooking people or honor and loyalty is something squalid
What do you think about football?
Did you think those players that are in European leagues are their for any other reasons than money? No. They are looking for a good career and money and nothing else more than that. If a Saudi Arabian league can buy them at higher price, they may prefer to go to such league. Only success is the reason they are there.