Sequoia converted their $60 million to $3 billion! That's over a 50x return. And overall, their fund is now 5x.
Flashy wins & big returns are what people report on.
But if you look at how sequoia operates, and their modus operandi statement, you'll see that one win, however large it is, is unlikely to change the way they approach the business of funding.
As for getting a meeting with them, being introduced is the best path. But you need to have something worth introducing. If you do, then you likely won't be as concerned about who you are meeting with vs. what the other party brings to the table to fuel your growth ambitions.