Suppose you came up with AI algorithm which is better than transformers and such. Your options are:

1. publish it e.g. as a paper or open source, letting all big AI labs to use it for free

2. keep it secret

Are you saying that it's evil to have a secret third option of making the algorithm public but forcing AI labs to share profit if they use it?

Depends on how they are used.

Let say you come up with a patent. You let open source use the patent, GPL3 ..., for free why charging close source solutions.

That could go to funding the open source development or other gains. FANNG has the money, take it from the them by all means.