Teachers are sort of faced with a thankless task, because no matter how good they are, unless they find a way to personally rationalize the rewards of their effort, nobody else is really going to do it for them en masse.
I worry about the very pernicious way we elevate and separate ourselves from other beasts, the way we rationalize our comfort and ease, our worship of the self, as healthy. It's enticing, but with a terrible taint of evil.
Name your nation-state, or tribe or party - you have to rationalize what you're doing. You have to go to sleep at night. Does Dick Cheney sleep at night? Does he sleep like a baby?
A part of my job, when I'm playing a character and approaching a role, is to rationalize and to not judge whatsoever.
The success of the few does not excuse the caste-like system that exists for many. In fact, black exceptionalism - the high-profile, highly visible examples of the black success - actually serves to justify and rationalize mass incarceration.
Sometimes I eavesdrop on people. I could rationalize it - oh, this is good anthropological research for characters I'm writing - but it's basically just nosiness. It also helps me gauge where I'm at: Am I normal?
Man can and does rationalize his sins. He finds reasons for all his weakness, invents excuses that first calm and then deaden his conscience. He blames God, society, education, and environment for his wrong doing.
Economics is mostly how humans rationalize who gets what and why. It's how we instantiate our preferences about status, privileges, and power.
The human mind has infinite capacity to rationalize, and evil characters just push that boundary a bit. Whatever they're doing, they think it makes sense to do it, and they think they have a good reason to do it. In short, they feel justified.