Sorry for the (super) late responses, but here goes:
MP: Thanks.
GAW:
“The Rambam (forgot exactly where) says that anybody who does not believe in thirteen certain principles has no cheilek in Olam Haba.
And I’m not sure what you mean by “don’t bring “Apikores””.
Since when do these apply to a non-jew?”
Fair point. However, I always that since the same reasoning should apply (ie, they are missing the main point of doing “good”).
Kol Daveed:
“This feeling then necessarily is either schar or onesh not based upon eating but based upon what Hashem deems is necessary for this person to experience at this time.”
Perhaps; but then one could say that the only reason Hashem decided to give a non-believer a sense of fulfillment in doing “good” is so the non-believer will continue to do good and benefit others, not because he has done anything inherently worthy.
“I would hasten a guess that this feeling of fulfillment is amongst the “parot” of gemilut chassadim.”
I disagree. I think feeling good is the direct result of doing “good”, even if the main point (to get close to Hashem) is missing.
“we know that from the gemara in Berachos (61b – about a dozen lines down) that reshaiim are repaid their s’char in full in this world”
True, but who says those resha’im are non-believers? Perhaps they believe in Hashem (so their mitzvos do count) but they do bad most of the time anyways.