Not sure where you heard that, longevity has a helluva lot to do with being "super-big" though, and google ranks don't mean everything.
If you want to buy your way to the top though I'll gladly help. I have #1 for "cunts" and #2 for "cunt", seriously. And a PR 5 if you still believe that relates to anything involving income.
And I hear that a lot of less sensitive type guys than myself are really just searching for cunt

Myself I'm in it more for the money so I'll sell the odd link for a semi reasonable price.