Pros to being stubborn in soloq?

Recently, I've been losing more and more games because I've been prioritizing teamwork over performance. It's the small things: unplanned trading champions ("I main Riven, trade me Thresh and go support so I can stomp" etc.) leashing the jungler after an invade, giving red/blue to the adc/mid, roaming as a group before a tower is down. It puts me behind, but usually helps out the team as a whole, like taking an objective or preventing the enemy team to pick Garen. From what I've been told, this happens all the time at higher ranks, but I'm in Silver (and dropping fast).

I notice that my Plat+ friends are really stubborn when it comes to teamwork in soloq. They never give buffs or camps to teammates, hardly leash if the jungler doesn't take the first camp right away, and never ever trade. Usually, they spend less time roaming as a team and more time farming/ pushing lanes/ picking off enemies solo, even when they support. Playing draft normals as premade 5 with them is abysmal; make a mistake, and none of them will care enough to help you out.

Is this the best way to think of your team in soloq? I know the dynamic of ranked teams is much different (and even from rank to rank in solo), and from my experience I'm way more suited to that.