Hey, I work in a company where user-facing documentation is written in LaTeX! I even contributed few commits to it.
I'm not sure though why sales people would need to edit it.
My discontent with LaTeX for documentation is that searching it sucks. I mean, you do get literal search for words, but if you want something smarter... PDFs don't interact well with searching tools we have.
Another problem: interactive scroll. In HTML documents you can scroll sections of documents independently of each other (if you need to), so you can create ad hoc views of your documentation that could be more useful to you (eg. collapse a bunch of tables or code listings just to see the text in between).
On the other hand, if you want to print it, oh man... it's going to look so much better! :)