C's won't get any compensation for this?? Huh?? 
They're getting compensation, just not in draft picks. They won't owe Ime the rest of his contract, which they likely would have if they'd kept him on their books.
I wonder, though, whether his conduct was sufficient to fire him for cause, and not be responsible for the balance of his contract. I'm not sure I buy this.
while i am neither a lawyer nor familiar with the details, firing someone often brings a lawsuit. the celtics could have been on the hook for his salary.
but perhaps more importantly, the celtics leadership may have believed that the celtics organization and those women involved might be harmed with bad publicity. too often i read of female victims being publicly pilloried. perhaps those were considerations as well.
but, this is just a guess.
EDIT: i just read Roy's comment which appeared while i was writing. Roy, once more, may have the right of it.