The fact that it is effective marketing doesn't nullify the fact that it is misleading. In fact, those two properties go hand-in-hand most of the time (though not always).
Misleading doesn't necessarily mean lying.
Now I'm wondering what I need to do to market myself there...
People who use LinkedIn actively will get way more views since they will be adding connections and viewing other people's pages more (LinkedIn emails people your contact info if you view their page).
At first, being top 5% made me feel popular. But considering the pool includes users who created an account 3 years ago and haven't touched it since, I'm not so sure.