You are either the sheep or the shepherd. Personally, I'd rather be the shepherd.
The only problem I see is Marat's tendency to say what's on his mind...or point out what candidly is 'Full of Sh*t'. Doing manager training you learn it's less about what you say and more about when to keep your trap shut.
I agree with your last comment. Safin is a western friendly commodity. He has a huge contingent of fans all over the world (US especially). He is an intelligent man however I would still work on his 'Brand image' a little more before I would run for Parliament.
Russian politics may work a little different from western politics but I would fancy his chances more once he had a family and financial success beyond tennis. People would be more likely to take him more seriously, right now he still has the stigma of a international playboy.