Pavlov’s dog aside we do not expect, largely, to change the nature or behavior of an animal. Why should we expect to change our own?
Is it right to feel distaste for your fellow man?
My own petty, unimportant and irrelevant moral dilemma should teach me something about the world and how to improve it.
Must try harder! Unfortunately as an imperfect individual I find it necessary to question my own behaviour on a daily basis.
Anger is an invention of the selfish gene, an evolutionary tool for the survival of the fittest.