Good God people get a grip! You'd think with how much stuff is leaked on the interne, you all would know already why he looks like that.
So we're, what, supposed to accept it because he's got a condition?
Howzabout this? Howzabout we don't put in the usual "let's make the villain more human" Cliche ailment and just make him the fucking BAD GUY
, 'kay? How hard is that??