I'll tell you what though, if I were born into "the good life" the quickest way to get me to not help is by expecting that I should help and that I owe anyone anything just because I happen to be more fortunate.
I don't mind someone feeling: "Hmmm, I'm living a pretty good life, so I want to help those less fortunate and give back to the world." That's a lot different than thinking, "you are living a good life so you should give back to the world."
One thought is a guideline for me to live my life, and the other is telling everyone else how to live theirs. Huge difference for me. and it makes a huge difference on what results are generated.
If you want to find ways to contribute to the world, you can do so yourself, and inspire others to do so too, just by being that. If you want to convince others to contribute to the world, I think the least productive way is to make them feel like they owe it.
And to complicate matters... some people do make an effort to help others, but sometimes, they end up not helping and enabling. You know what they say about good intentions!