A discussion of economic, social and interest class which I think has a lot of relevant points for "tech" (google employees unionizing gets a mention).

Also who couldn't like this description from a (former) programmer:

"At this point some of you will have noticed that this "class" operator is getting uncomfortably overloaded, and that is a smell for type-coercion and assignment-where-you-meant-equivalence bugs. You are not wrong."