I get the impression that many extroverts see introversion as a flaw / limitation that should be corrected, rather than an equally valid personality type that they should accommodate.

Apologies if I'm painting with an unfair or inaccurately broad brush. I may be vastly overestimating the prevalence of that attitude.

Some people would be happy if they're paid just to talk to somebody _few hours_ during worktime about non work-related stuff.

The kind of people who work in HR (which is why these schemes get set up)