Nothing about this damages society or perpetuates class divisions and I haven't the slightest idea where you got that from. We aren't talking about arbitrarily discriminating against a group of people, but charging them slightly more because they cost slightly more. Or less. And for the most part, other factors like past history and the like will vastly outweigh that information, unless you actually believe it makes a difference. In which case why shouldn't it be used?

>Because human lives are more important than maximizing profit.

This is the stupidest expression going around the internet. Obviously human lives are more important than maximizing profit (well not so obviously, as almost everyone risks their own lives and often the lives of others for money and convenience. Driving cars for example.) This adds nothing to the conversation except to make it seem like the other side is against human lives which obviously aren't. No one has ever said "maximizing profit is more important than human lives."