I think you're missing a middle ground, of people who want to let people know a thing they found or learned, and want to get credit for it.

Among other things, this motivation has been the basis for pretty much the entire scientific enterprise since it started:

> But that which will excite the greatest astonishment by far, and which indeed especially moved me to call the attention of all astronomers and philosophers, is this, namely, that I have discovered four planets, neither known nor observed by any one of the astronomers before my time, which have their orbits round a certain bright star, one of those previously known, like Venus and Mercury round the Sun, and are sometimes in front of it, sometimes behind it, though they never depart from it beyond certain limits. [0]

[0]: https://www.gutenberg.org/cache/epub/46036/pg46036-images.ht...