Guryon
(secret identities) create an anagram like voldemort. Create a different identity, depending on the sector of activity. (literature)(runic magic)(other activated) the story of making the world believe that the company has several specialists who are geniuses in their fields. (a bit like Flammel and Alchemy)
I would say keep his other identity for controversial issues that could get him targeted or in trouble and anything that would just make him famous him use his real name as you've stated his goal is to be powerful and famous if I remember correctly If you're going to do a secret identity I would have said he should have used that with the dmle donation and such things
The whole thing about the elements seems complitely foolish. The magic in the Harry Potter universe already allows for almost everything, so why is the author creating a new magic system when there are already spells to do similar things? And as for wasting time creating the game, I could understand doing that if the mc wasn't already rich, but as it stands it's nothing more than a waste of his time...