Hahaha this is crazy, have you ever noticed that a lot of people are laundering money through those paintings? I heard about a painting from a unknown person who was valued on 2 million dollars, it was created by someone who was a normal person like you, and me.
But there are some organizations who are entire dedicated to try to launder money by this way, i doubt that this case is one of those, but it is pretty weird to see that they are putting a price of 592 millions just for a painting.
I doubt this is a case of money laundering. You're talking about one of the largest auction houses in the world as well as one of the most famous artists to date.
Regarding the OP, I don't see anything wrong with this. Art is subjective and if a person/collector can afford this piece at the price he/she is willing to pay then so be it.
Every industry has inflation of all sorts. Professional athletes/entertainers are paid insane amounts of money because they are responding to a high demand for entertainments and sport. The same applies to art and other niches. The market responds to the demand. This auction set a record to date and I'm sure it will be beaten at some point in the near future. The market price was determined by natural market forces at the end of the day.