If you mean "Golden Rule" then I would say that the Golden Rule is an example of self sacrifice not self interest. For the Golden Rule to work to your interest, those to whom you would treat in such a way must be committed to treat you that way. Jesus expected us to treat others that way without any expectation that others would treat us that way.
Christ's disciples were tortured and killed despite their own adherence to the Golden Rule.
Yes, that was my pre-caffeine version of "Golden Rule"
I do not see "Love thy neighbor as thyself" or Do unto others as you would have them do unto you" as being even the slightest bit self-sacrifcing
It's sort of like the iterated prisoner's dilemma...you be nice to me, I'll be nice to you; but if you're not nice to me you should have no expectation of me being nice to you and I perfectly well know that if I'm not nice to you I should have expectation of you being nice to me.