its literally 100% jealousy going on here.
>implying everyone is jealous
>implying everyone knows that he is good at X and to be jealous of it
>implying everyone has seen his stuff
>implying
But really though I have no idea where the idea that everyone is jealous of him came into your head, the vast majority of us wouldn't even know he is good at anything, everyone is calling him an egotistical richard because he is being an egotistical richard, not because they are so awestruck at his amazing abilities that they are all forced to hate him.