She probably is already stinking rich, or at least rich enough. Beyond certain point, though, research and knowledge seems more interesting than riches, and particularly if you feel yourself a researcher. Otherwise, perhaps, she be doing the same to business and be Ellona or something. Thank God she does not, but the contrary - is an inspiration to so many people - young and adult. Kudos!
For an HFT firm, RAM cost is a non-issue. Even the tiniest improvement in latency can result in millions of dollars of extra profit. They can octuple their RAM usage and still make a killing.
I bet Citadel already has reached out to Laurie :)