Pea Size Dollop - I think not

What's the deal with all those pricey product people telling us that all we need to use is a pea size amount to make it work. Yea right! How can a dollop the size of a pea do anything on your entire face and neck? C'mon man. That's ridiculous, right? I have this night cream that says this and I don't know about your face and neck but mine does not get covered with that much. It needs at least two caterpillars length.