if you understand how cs works, if you play smart, you will experience that you, by yourself, can win rounds without shooting a single bullet. pasha full control.
by having the right positioning, by making the right call, giving your team info, throwing a certain grenade, by getting behind enemy lines. that doesnt show up in the stats at all. impact in the actual game is more important than stats.
i often finish games with the 2nd or 3rd amount of kills on my team, and a lot of deaths. so, not impressive kd. in those situations, my adr is often higher than that of my teammates with more kills. because i take a lot of map control, get info, throw grenades and get assists, try to help my teammates, i dont do stupid chases after low hp enemies who get away. those teammates with higher kd, they are mopping up the enemies that are left at 10hp after i die. now who is better? the guys who clean up wounded enemies and die less, or the guys who do the most damage? its a useless question. you need both to win. one stat or another isnt more important than the round wins.