So the skills in question, while niche, still enjoyed a supply/demand ratio that ensured that the structural unemployment rate for people who had them was 0%. And most companies know to get who you can and then make sure they stay happy.
Unfortunately, large conglomerates tend to be very credientialist. So leadership positions tend to be filled with people who have diplomas from schools with a lot of name recognition, rather than people who have enough of their own domain expertise to understand the product's business environment.