Self Interest

Here are some questions that I sometimes ask myself: Are all actions driven entirely by self interest? Even altruistic ones? What about on a non individual level, like the actions of entire countries with respect to other existing nations, aka foreign policy? Is literally everything we do selfish?

Is it Immoral For a Charity To Take Dirty Money? EDITED!

Just a thought: Would it be wrong for a charity to accept money that came from drug deals, theft, murder (blood money), etc?

Dirty money for a good deed....wrong?

EDIT: The charity in question knows the money is dirty.