All websites have founders and personality. Since you mention the PirateBay, they were a team with a rather snarky sense of humour. Archive.org is run by a foundation. There are always people and there's always legal responsibility.

In any case, Sci-Hub is really "everything that is good about the internet" because it's a way to make scientific knowledge accessible anywhere to anyone, in a way that was never possible before. The benefit to scholars and students in poor countries is enormous.

And considering just how disgustingly parasitic the scientific publishers have become, Elbakyan is probably the closest to a XXIst century Robin Hood, much more so than the Piratebay founders, actually.