They aren't coming from squalor. Well to really. They aren't poors that use the wisdom of the streets to win. That was slumdog billionair. They are temporarily embarrassed nobility. They learn that our betters are simply better than us, and do infact deserve special treatment. Harry Potter didn't use muggle tech to solve anything. Harry Potter used his literal inheritance to solve every problem. Most of which were that people didn't recognize he was better than them.