We've gotten phone calls asking for help with fixing peoples' Yahoo mail accounts, asking for returns to stores that were completely different than ours, trying to get refunds on products we don't even sell, and many other nonsensical and time-wasting calls from confused people.
If we, at our extremely small scale, were often annoyed by dealing with irrelevant phone calls, I have no doubt that Google would be drowned out by every person who had an issue installing Windows, trying to setup their printer, asking for help getting their money back from a shoe store, running out of gas on the highway, their apartment not turning on the heat high enough, and a host of unrelated things that most of us would never dream of calling Google about.
I'm not asking for perfection from Google: I'm just asking for Google to help desperate people that are completely screwed and giving them some option, even if it requires some payment, to fix major life-changing issues.