Integrity means not being moved by the appearance, demands, or actions of others from a course of ethical/moral behavior. It isn't as common as it used to be, and was especially prevalent amongst the Greatest Generation.
Many people decide to maintain their morals and integrity instead of gambling them, maybe even the majority. You just don't hear about those people.
Totally. One of the two generations (along with the Silent Generation) who got their pensions and cheap houses and pulled that ladder up after them because it would inconvenience them for the companies they invested in to pay for pensions for the next generation. Also, the vast majority of them were rabid racists. That was bigtime integrity.