If you enjoyed the "smart people outwitting each other" stuff in Death Note, I can recommend a manga called Liar Game. There's no anime, but if you'd prefer it in video form, it was made into a live action drama.

It also inspired a Korean reality series called The Genius, which I can also recommend.

Okay but is there howitsactuallymadewave?

You should definitely check out the effective altruism movement, figuring out how to maximize the amount of good that can be done through charity is exactly what it's about.