Op, I'll mention to you that its only someone in a good state of mind that makes a valuable contribution. Secondly, to impact positively, you must need skills or funds, most times both, and building a venture takes a long time and needs a lot of dedication. Now how do these people take Care of themselves during the building phase??. Can you make contributions actively on empty belly?. These people you're victimizing, if you go close to them, you'll see that they're not even happy in that situation. They cleanly and clearly need help,  but most times it doesn't come by.
  Most of them are illiterates who don't have access to those information, lest they would've made good use of them. Most don't have android phone to surf the Internet and get profitable information.  Most  young ones are even influenced by their environment as what they see there makes them comfortable in their conditions without an opportunity to thrive. Bet me, most of these people you think are never do wells, if they're exposed to the kind of knowledge you've, they  would excel.
Alright there are few exceptions to these conditions, some people are just nothing to write home about, but all I say is this. All underperforming youths need help and we should be discussing about how to avail the required help to them . That's What humanity is all about. I'm campaigning that we become more human in our  judgment of people.