Doesn't he run Roddenberry Enterprises, making $$ off of his father's legacy?
personally, if i had a legacy, that's what i would want my kids to do. this could equally be seen as carrying on the family business. he could just as easily be living off the proceeds and having a grand old time, i dunno, screwing starlets and doing coke.
and i don't wanna say that his opinion counts more than anybody else's, but it's comforting to know that someone who was probably in on a lot of the inside story is satisfied with this flick.