Probably not. No, it's not even supposed to be. Because Perelman himself did not want it, although his achievement could have easily brought him world fame.
What is that achievement? There are some unsolved problems in mathematics whose solutions are considered extremely difficult; If you can solve any one of these problems, known as the "Millennium Prize Problem", you will win a prize of 1 million USD from the Clay Mathematics Institute! One such problem, known in mathematical circles as the Poincaré conjecture, was solved by an infamous Russian mathematician, Grigory Perelman.
Perelman's contribution was considered so great that he was awarded not only the Millennium Prize but also the Fields Medal, the highest honor in mathematics. But to the surprise of the world's mathematicians, Perelman refused both awards. It is said that Perelman took such an unprecedented decision out of fear for the moral values of his colleagues. But his most popular quote in this context is - "I have no interest in money or money, I don't want to be shown like an animal in a zoo."
Even assuming that this is not the real reason, seeing Perelman's activities before fame, his statement does not seem too unbelievable. Perelman worked on the problem in obscurity for seven years before publicly publishing the proof of the Poincaré conjecture in 2002. The math community didn't even notice. It is not difficult to imagine someone who is not particularly concerned about his reputation.
I have heard about the concept of selfless action in the Bhagavad Gita, one of the books of Sanatan Dharma, from my childhood, but till today very little is seen in its actual signs. Listening to thinkers like Perelman, it seems that unselfish actions are not impossible for humans.
In fact, behind the achievements of those who we call "talented", patience and perseverance are much more than talent. Perelman is undoubtedly a great mathematician but he had to stick to a single problem for seven or seven years. He didn't know if he could solve this problem. It could have happened that a lump came out in the evidence given by him and the whole evidence was invalidated. It could be that someone else figured out the solution to the problem before him.
I think some things cannot be done with the mentality of getting publicity or self-promotion. It focuses less on work and more on promotion. The Millennium Prize Problem cannot be solved with the prospect of a million dollar prize or fame.
One could say that Einstein was both genius and famous; But he is an exception. The truth is, there have been and still are many scientists of equal genius to Einstein who are not known to the general public because they are not publicized. I'm sure none of them are worried about it or were.
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