If you're seeing brand-new players in your ranked game... That's because your elo's low enough to justify it.
Unlike normal, Ranked isn't an "everyone who grinds long enough wins" situation; some people simply will be better at only 100 wins than many other players will EVER be, no matter HOW many games they play.
Some people will console themselves in thinking that having played more automatically makes them better, but the simple truth is that generally, there's someone out there better than you. (unless you're someone like XJ9 or somesuch)