I wouldn't say Rush didn't give a shit, but he was alienated from the crew by his overall shitty life and the crew alienated him by being stupid and/or assholes. But I wouldn't say Young had empathy for the crew (aside from his little clique of officers), at least in the first 1.5 seasons. A lot of the time he was an asshole and seemed to give the bare minimum of fucks needed to be perceived to be the leader. His alienation of the civilians by having his handful of closest minions do everything lead to the freaking mutiny and only the writers ignoring stuff that happened in one of the earliest episodes prevented a decent chunk of the military crew from turning on him. Some of that could be explained by his marital problems and that briefly mentioned mission that went bad, but the writers didn't really flesh him out enough to make anyone like him as a person instead of as a counterpoint to Rush.