My fear is, I see many 0.5x programmers / workers who are active drag on products and teams. :-/ The problem with these workers are, the more you have these people on the team, it has a multiplying effect instead of additive in terms of productivity. 0.5x0.5x0.5 (not 0.5+0.5+0.5)
If most of the team are actually 0.1s then a 1 will seem like a x10.
Anyway, I've worked with plenty of people who can get stuff done, and I've been able to get stuff done myself sometimes. However, it's all relative and if I'd been at Xerox Parc in the 70s I'd have been a 0.001 for sure.