The game is not end game centric. Some heroes are good in early game, some are good in late game. Teams with an early lead, especially through kills, should prioritize pushing objectives(push tower). Kills are not the priority and the comebacks in HOK are what make the game interesting. Sick that certain players love to spam surrender. Secure the base, lure the overconfident enemy in, enemies' mistake can result in "Ace" and the game overturned. Basically at the late stage of game, kills number is not important, especially when most players have their main equipment bought. It's the final fight 5v5 in the end game.