I hate that culture--what is it for? So some VC can get their return? If it's truly mission-driven, yes. And I've done it for the mission. But I'm not going to do it just so the "company can grow" and someone can get their 10x return, or the CEO or founders can get their big paycheck. Once VCs get involved, there is no mission other than to increase the return.
Also, if you want to work 996, you'd better not have a family -- if you do, you're neglecting them whether or not you think you can "juggle things" just fine.