According to an old joke among Mittelstanders, BillGates could not have made his fortune in Germany because it is illegal to turn a garage without a window into an office.
Xerox gave their operating system to BillGates, who tweaked it and later started selling it as Windows because it was not the business that Xerox was is.
For instance, BillGates used to have his own personal account until a year ago, when he gave up because he had 10, 000 people requesting to be his friend and found it too time-consuming.