Can you close this game out?

At the end it looks like Renekton is trying to fight their team under 2 nexus turrets instead of taking the turrets. Why would he do that instead of trying to take nexus turrets? He even uses his two dashes which got him so far away from his own team. He could use one to intimidate, and one to escape? In baddie leagues i see people do this often but when I watch good players they seem to focus on turrets and only engage when they can either take another kill or are forced into it (enemy ryze/kled ult or such).

Observation from a support main though, I really don't know why he'd do that.

I guess I got 1.5 right. I wasn't sure if the enemy was going to engage on baron for the second one so I was kinda between the two. He'd play front-line renekton if they did and fight. or he just tries to buy time being scary if they don't.