Divergence has nothing to do with power.
Some of us want a tight beam with a small dot without that dot scorching the wall.
If you were doing a presentation where a finely detailed map or schematic was projected for the audience, the presenter may want to point to a specific location rather than a larger area on the intended target.
there could be a dozen reasons for wanting the "dot" to be small and tight at a distance.
to BKarim - the best thing to do is sit down, take a notebook, look at your available options and write down the specs, when you find the pointer that suits your needs, order that one. Good hunting!