Ive said many times on this board, Hogan exists as a major attraction in an industry that offers no pensions, no health care, and where your individual talent and performance mean less to your ability to make money than how some promoter or booker wants to use you. It's a brutal, tough business where you have to protect yourself.
That being said, Hogan draws vitrol from the IWC over stories of his percieved abuses of his creative control clause in WCW, changing storylines and match finishes that benefitted him at the expense of the product. His last minute finish change at the 94 Clash of Champions when he was supposed to lose the WCW Title to Ric Flair in order to keep the belt because it might hurt his merchandise sales, even though keeping the title hurt interest in what was supposed to be the tie breaker match in his series vs Flair at the annual Halloween Havoc PPV. He famously refused to lose cleanly to Sting after all the hype surrounding their Starrcade 97 match. He did lose fairly to Goldberg in 98, only to see Goldberg buried in the mid card as Hogan's feuds and matches got the most promotion and main evented the next three PPVs. There are other stories, some including Kevin Nash, but ultimately if Hogan made product damaging decissions to protect his character the blame for that going on falls on Bischoff, he was in charge, he let those guys run wild, Vince McMahon would never have let things get that out of control.
As far as Hogan not losing his SummerSlam bouts vs HBK & Orton, no one wanted to see the legendary Hogan lose to the obnoxious heel Orton and like it or not in a battle of legends Hogan is way bigger than HBK.
It should be noted that Hogan did put over Angle, Lesnar and Undertaker during his last Major WWE run, a run that allowed him to win a last World Title and otherwise be treated quite well.
Is Hogan a selfliss, for the good of the company, take one for the team guy like Cena, Flair, Sting, Savage, etc ? Maybe not, he is probably the best business man wrestling has ever seen. He has made a lot of money for himself over the years. If he has at times abused the system blame that on people like Bischoff or even Dixie Carter for letting him do it.