Gachapon Boxes: could it be that..

As the old saying goes It takes money to make money, and when you have something like 200 bill in meso across all servers and 10,000k NX its not surprising he is able to make more.

Having money certainly helps, but in a game like maple you can get enough money without too much trouble. Just sell letters or witch belt scrolls for mesos, if you're dedicated you can make a pretty nice amount in a few days. It also helps being dedicated to one character, that can area boss easily or hunt for PoTs in the time temple. There's a ton of ways to make mesos, so I really don't think saying HeroTex is rich because he's rich is a fair claim. Learn the prices, learn predict future content and its affect on the maple economy (as far as reasonable, since you never know what Nexon might stick in their gacha boxes), learn to use NX as a currency in the same way as mesos, and you are set to become as rich as you have the time/dedication for. Of course a bit of luck can go a long way too, so stick to it and eventually it'll pay off.