Definiton - Help?

I genuinely don't know where this is supposed to go, so if I've got it wrong, please move it.

In a thread about a week ago, I saw someone talking about people that disagree with Obamacare but still claim Medicare.

I was wondering what you'd call it when someone claims a benefit that they disagree with it solely because they're eligible and technically paying into it with their tax anyway, so they claim it for that reason?

(in before hypocrisy, lol)

Cheers.

Opportunist?
Gaming the system?

Or hypocrite, that works too.