I don't think he cares as much as others do about getting beat up on TV... he's a beloved character/person and he draws sympathy like no other. So he's been used in that "humiliation" role when trying to draw heat to a heel- i.e. McMahon, Tazz, Kane, Austin, HHH, Cole, etc. I don't believe all of it is just mean-spirited abuse like people depict it as.
Now stuff like the out-of-nowhere move to SmackDown was shytty, because he should've at least gotten the respect to be told beforehand. And those times he was let go for fukked up reasons back in the day were definitely unwarranted. But for the most part, wrestling's in that man's heart... he probably genuinely doesn't get as "hurt" as the IWC often does about the things that happen to his on-screen character at the hands of heels. Beating up JR is like insulting the local sports team- it's guaranteed heat 10 times out of 10. Way more than anyone else... shyt, Punk coulda beaten him up in Chicago and the whole crowd probably woulda turned on him.