1) Yes, I'd take the uplift. There is a lot of content on the internet and my adding to or taking away from it is like emptying the ocean with a cup.

2) trickier, but yes, even with the proviso of less direct search: if your name is put in front of people and they want more knowledge of your work, they will follow up. And, again, if you don't take this opportunity then (this being the global internet) someone else will.