Roland Trembo was shown as a noble hunter who wanted the thrill of the hunt and the honor of bringing down a Bull T-rex but put his hunt a side to help everyone get off the island. juxtaposed with Vince's "Liberal" activist character who actively tries to kill the InGen employees even the scientists and caused most of the deaths on the island basically showed that both sides had good and evil aspects which during the time WAS subversion of the 90's narrative of Hunter bad Greenpeace type good.
Wheatley wasn't a hunter... he was a dick with a a pair of pliers he didn't want to hunt the dinos he just wanted to pull their teeth to show how much of a "badass" he was. and Ironically a subversion of the TLW.
TL;DR Roland = Noble, heroic, alpha male, Wheatly = omega male wannabe.