Patur Aval Assur,
As far as I can tell, everything in all of your posts always comes down to a human being seeking the best pleasure.
I would say ultimate benefit rather than pleasure, because the fact that something is the ultimate benefit remains independent of whether the person derives pleasure from doing it, even though the person will derive pleasure from it in the vast majority of cases.
At risk of repeating the madness of the earlier parts of the thread, I think the prime example of someone doing something purely because it was the ultimate benefit (following Hashem’s command) and not because of any reward or pleasure taken from the act is Avraham Avinu at the akeida.
Also, I don’t see how you addressed my point from the terrorist – at the end of the day (according to how you said the example) the terrorist and the good-deed-doer both fulfilled what they thought was there purpose and they both achieved that loftiest of feelings which one gets upon realizing that he fulfilled his purpose.
I guess I’m not understanding your question. What bearing does the fact that a person can get a twisted idea of his ultimate purpose and take pleasure from the resultant twisted actions have to do with this discussion?