He spent a bunch of dough on that hair. I believe he is likely aware of his appearance. He is pale and overweight because he spends a bunch of time playing video games, being a nazi in his failing social media site, and (based on this picture) eating french fries.

Maybe at some point his vanity will compel him to get liposuction or just go full orange man with spray tan and wear baggy suits with ties that are too long. I don’t see him being like Bezos or Zuck and getting into shape.