Extraordinary is when players like Lewandowski declined offers from Saudi Arabia. Here we are talking about less than 3x which he could have made from going to Saudi Arabia. Dybala has a ton of money already and he knows that the next three years are the final years where he could reach some goals. It is not very likely that he is going to win the Scudetto with Roma, but maybe they can win the Coppa Italia or have another good run in the Europa League. I think the amount of money he was able to earn here was not close enough to his personal minimum threshold. It is possible that he would have said yes if it was €35 millon instead of €25 millon per year.
If you compare this to the €200 millon per year that Ronaldo is making then that is still a whole different story and beyond that salary Ronaldo is doing it for business purposes and subsequent potential deals in the Saudi Arabia area. I think there was some talk about a paid ambassador role until Saudi Arabia hosts the World Cup. And Ronaldo probably has more freedom and flexibility than Dybala would have if he went to Saudi Arabia. I could see how Dybala loses fun and can't play well and then dumps into a hole and feels lost in that part of the world. He doesn't seem to be the kind of guy who would feel comfortable over there.
Jordan Henderson left Liverpool because he thought he could make a lot of money. Keep in mind that he left Liverpool and tried to justify it in a very weird manner and then after a short period of time he firgured out it is not the right place for him and ended up playing in the Netherlands. Ajax Amsterdam is not a bad club, but he could still be playing in the Premier League if it wasn't for his money grab move to go to Saudi Arabia. I think that more and more players have figured out by now that money can't buy them everything and if they already have hundreds of millions or maybe 80 million in the bank, it is still a tough decision to waste three years of your life.
The well known names that go into the Saudi Professional League have quickly become less and less. I remember how everyone thought that the Saudi League would now buy the whole world of football and everyone would go there, but it quickly became obvious that they won't be able to maintain that level of transfers and salaries for everyone.