Mercantile
Part of speech: adjective
Definition: Concerned with the exchange of goods for profit
Mercenary
Part of speech: adjective
Definition: motivated by private gain
Part of speech: noun
Definition: A person employed to fight in an armed conflict who is not a member of the state or military group for which they are fighting and whose prime or sole motivation is private gain.
Example sentence: Inspired by the purse rather than the soul, the mercenary side fairly screams in many of the works put out by every day American publishers.