Answer:
Egoism
Step-by-step explanation:
Egoism is an ethical philosophy in which an individual's basis for morality is self-interest. In other words, egoism is a theory that basis an individual's goal or motivation for act to be based on self not because of interest in anyone else. Egoism does not encourage the interest in anyone else but pursues self interest.
Jack told people they look good in the clothing irrespective of how they look not because he had their interest at heart, but because he had his own interest at heart (more money), this philosophy is called egoism