Obviously in the context of the statement it's = to punishment. And yes, your stance makes it absolutely necessary for you to assume that Naruto and Minato wanted Obito to get off scott free.Here is the thing - compensation doesn't always equate punishment. I am assuming it?
On what do you base the bolded on? And it doesn't even matter, it's only a selfish decision if Naruto is doing it for himself. If he's doing it for everyone else, it's not a selfish decision regardless of what people perceive the seat as representing.It's what the seat represents and the ideals it supports. Naruto is selfish, and that term expands into something beyond what you highlighted. Any ideology you have, or you support, automatically makes it a product of what your self covets. It means whatever you are doing it is to satisfy the self.
And we've already been over the last part, it's completely irrelevant as whether or not you like the idea, came up with it, or feel satisfied by it is irrelevant to whether it's a selfish idea or not as a selfish idea is one that puts one's self above others. And that's by the literal definition of selfish.
So the only way you'd be right is if you make up your own twisted definition for what selfish is, a definition that would make every single action anyone could possibly ever take selfish regardless of how benevolent or how much one puts others before themselves.