>>Are you asking because you want to learn something or are you asking because it makes you feel superior because you made different choices?
Yeah, but note these are not 'one event' choices, not opting to save and invest are a long term processes which pan out over months and years. And I would say any one who is doing this, is in full consciousness aware of the risks and melt down that would follow when things go south.
Keep this case aside, There are people as of now when we are having this conversation who make crazy salaries and are blowing it all away on gadgets, vacations, and generally things they can't afford/sustain to own on a long term. There are also people who do the exact opposite and save and invest. You shouldn't be surprised where the two kinds of people will end up on a longer run. Yet this is very basic common sense which anybody can understand with a little understanding of math.
I don't know of anybody(regardless of how much they earn) who can't bootstrap their their way to at least medium level richness. All it takes is a pen, diary, discipline to save and invest and track things at weekly, monthly an yearly level.
It isn't mean or rude. Its just supposed to remind people the next time they are having a nice patch in their life, they should save rather than blow it all away.