Helpful or Just a Pain in the Ass

I drove to the store today and some evangelical group was shouting invitational scripture at the top of their lungs at the main street corner near the store. Are these people really being accountable with their time or are they wasting their breath when they could be using a more viable form of media like the internet. Nothing expresses the self or the group like the format of text. It's a leave or take scenario and no one is in anyones's face loudly.