In the expression "this is wrong," I think we can agree it matters greatly what "this" is. Criticizing a system is not the same as criticizing participants in that system.
And again to the my original point in response to you: would you have every pol who criticizes this system face the Hobson's choice of either being unelectable or face the charge of hypocrisy? Money in politics is already institutionalized because it is a conflict of interest for pols to get rid of it. You just want to cement that problem even further by adding a stiff penalty for any pol who wants to reform it.
Your point hinges on something I don't accept.
To say "If I lift this ax and kill a man it is wrong" and then doing it isn't hypocritical, but if the person said. "Charlie X killed a man with an ax and he was wrong" then murdered someone by that means it would be?
That's putting too fine a point on it. I don't let my children get away with that because if they knew that doing a thing was wrong and they did it that is enough. I don't need to bring in other families or individuals.
Now one might say that it was necessary to remain in the race and that would be a point which could be debated on merit, however the fact remains that Obama believes the means by which money is gotten is wrong, says so, then uses the means which he says is wrong to get cash. The cause and effect aren't so easily divorced for me. It's a useful compartmentalizing of morality as far as I'm concerned where cause and effect play no part.
Now in the real world I realize that people do this all the time. I concede that Obama believes that political expediency requires this act. Is that a problem? Not in the grand scheme of things, but it's still a hypocritical act. As I see it one can accept it or not. That's on them.