I don't think of it in terms of snobbery. Just reality. Yes many wealthy do raise their children responsibly in that sense. However, the reality is that they never truly are faced with the prospect of finding their backs against the wall. when a wealthy person "loses" his job, he is still wealthy. Bankruptcy is another matter, that is where you really find the character of a man. However, he still has better contacts than most of us and can recoup as a result of that faster than most of us would. It is sometimes who you know, as much as it is what you know.
Who one knows is part of almost EVERYONE's life. It isn't just the upper class and upper middle class who " network " and know people.
Money helps, but it doesn't totally remove one from life. In the same vein, poverty doesn't have to keep anyone " down ".