One should never underestimate gold/5 items anyway. I know as (don't hate me Leesa :>) Poppy, strong carry, not the best for CSing, a single philosophers stone can keep me on par with everyone item-wise for the game.
Well, I usually queue and lane with my friend, who loves picking carries, so we both know what to do, this way he's usually ripe with CS, and ready to blow the other team apart.
I used to think jungling was useless
Until I did it with Trundle of course, and ganked like there's no tomorrow all game.