Its hard to say with once-famous celebrities, a lot of them end up doing things less as a result of thinking and more a matter of they needed the money ....perhaps Mike suffering a Little Boy Blue moment as it were OHHHh!
I doubt Sharapova has any need for money for several lifetimes and even less need for a Kanye .... unless she's looking for a little financial wrecking.
The near instantaneous response from sponsors clearly was contrived but it serves as another good example of bad things that happen to people following the instructions of their MDs, I mean, seriously, Sharapova has been running the court an hour or two a day for years, how much actual health problem does such a specimen have that requires pharma drugs to remedy? Does anyone expect the pharma corps to drop the MDs used for sponsoring their drugs that cause athletes to fail tests ....