Earlier quoted context omitted.
I'm not sure what the term for the tech world is, but something similar seems to exist in many areas of many fields. It's one of the reasons I stopped accepting lawyers and law firms as clients. Every other client would pay on time. Those in the law field would consistently slow-pay, I believe because they knew they wouldn't get sued over it. "That overdue invoice? Oh, we never received it. Send it again." "Oh, Jenna…
As a class, lawyers and doctors are some of the cheapest people you'll ever meet. They don't want to pay full price for anything. I have tons of stories about this; one of the most egregious was a lawyer who made over a million a year and sued his mechanic to avoid paying an $800 repair job to his daughter's old VW Bug.
Maybe my population is skewed- two of the three doctors I see are Eagle Scouts, but not everyone is a cheapskate.