The old "Personnel Department" did that perfectly well long before HR was a thing.

Maybe it is because I've never worked in the valley, but I can't think of a positive 401k plan experience. I do remember a lot of onboarding powerpoint with regards to penalties and limitations. The whole thing feels coercive, having to participate in the market when you aren't interested in managing the position - simply to protect your savings from intentionally set inflation rates. All those "unsophisticated investors" (no joke, that is what they call you) are arguably the cause of the dot-com bubble as well, not because people were daytrading pets.com, but because fund managers had to put that surge of disinterested capital somewhere. I imagine that if powerpoint was around back in the day, the guys managing company store credit schemes would have functioned much like today's HR reps.