Meh, CSGO ranks are pretty bad indicators of skill.
I am Supreme and I still have to deal with plenty of ragers and the only solution is to keep my mouth shut because every advice or tip given is regarded as bad manners or complaints. There are LE's as good as Globals in terms of aiming and game sense, but gets unlucky teams in MM. I would go as far as saying any LE - LEM team that routinely plays FaceIt/CEVO/ESEA's sponsored tourneys (like the Dreamhack Pre-Qualifiers for NA/EU that happened recently) would pub stomp a pug of Globals.
Back to your question. I am only 5.4k in Osu while I am Supreme in CSGO.