Varies from person to person and we don't know how he thinks, but the more general point is that it can be perfectly reasonable for someone to turn an insane amount of blood money down, doesn't make you an idiot.
Also, one of the best footballers on the planet shouldn't be anywhere near an absolute non-league, even for one season, but that's just my opinion.
Mate he had a chance to leave PSG on a free before but took all that money to stay for 2 more years. He will go.

