I get what you are saying, I have noticed people touching their faces more while wearing one, you can't help it, they are annoying fucking things.
As far as a mask not helping or giving a false sense of security you are right again, although if someone is coughing and spluttering they should definitely wear one, those droplets you are talking about have to come from somewhere, they might not directly infect someone else but they are spread onto surfaces by peoples face holes.
Some sort of covering is a good idea man, even if all it does is put the head cases at ease in your mind.