system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Are wizards like Dumbledore/Grindelwald/Voldemort so powerful because they studied more magic than the average wizards?

So my understanding is that, to an average wizard, there really is no point in going above and beyond when learning magic. They might go to school, get an education and then get a job. Sprinkle and spells and magic here and there and you really don't need to be the "best", just "good enough".

So my question is, is that how majority of the wizarding world mindset is, and exactly why people who go above and beyond, such as Dumbledore, Grindelwald and Voldemort are seen as godly wizards? They never stop learning, they always want more and more knowledge and power. 

I mean, even if you are an auror, just how much spells do you need? A couple of stunning spells? Defense spells? It seems any wizard can be like the caliber of Dumbledore if they just learnt more or tried. Is the wizarding world just poorly educated and no drive to learn beyond what they do in school? 

It seems the lack of ambition is why most wizards aren't so powerful. After all, everyone can equally cast a spell, so what makes Voldemort casting a spell any different than some Joe schmoe off the streets? The spell would come out the same from the wand, no?
gpt
It's not just wrist work, and or not just intelligence, you need a fair amount of cognitive flexibility and resilience to perform some spells.  Expecto Patronum required you to think of something happy. Ridikulous required you to think up, on the spot, something funny about a boggart (your worst fear)

It's like most other abilities, training will make you better, but  some people are simply more talented.