It's never too late to do the right thing. As an extreme example, everyone who's used to it now, will eventually die And this "extreme example" somehow proves

It's never too late to do the right thing. As an extreme example, everyone who's used to it now, will eventually die And this "extreme example" somehow proves your point that it's "never too late"? If it includes people having put it with this dying, then I think, it IS too late.