Unless you are a drummer, I don't think that your average musician understands how difficult it is to play softer and for it to still sound ok.
I tell people it's like this: Let's say you play guitar (either electric or acoustic), but you have to play through an amp, and for kicks let's also say that you amp is at a pretty comfortable level set on 3 out of 10. Now, cut your amp up to 6 or 7 and attempt to play at the same volume in addition to the same "passion" you have for worship music. Oh, and if you get too loud, people will turn to you, give you nasty looks, and will voice their doubts as to whether or not you are a good "fit for the team."
It's all about touch and finesse, and it is truly an acquired skill.
You don't have to play loud to be effective.
Exhibit A:
https://www.youtube.com/watch?v=W8L7JZP97X0
Papa Jo is a storyteller. OMG, those buzz rolls...