The trick is to have your own personal code and stick to it.

And to develop that code you need to think about what you would do in a morally difficult situation before you get there.

So you need to think about things like "what would you do it your demographic became widely discriminated against?" even if it seems completely unlikely to happen.

Another one which has come up recently is "what would you do if there was a food shortage or a run on the shops?" We had just a hint of lockdown last year and a minority of people went crazy and emptied the supermarkets. A sensible person would already have considered that scenario and added it to their moral code.

There are many such things we should all consider.

It's easy to be good in good times, that's never when personal morality is really important.