Their companies figured out a way to make Ford pay millions to be the first result for "Ford" when a user searches for "Ford" instead of users getting a result for "Chevy" (tiny ad disclaimer and recent court cases overseas notwithstanding). https://nymag.com/intelligencer/2019/03/why-businesses-have-...
Other successful ones (often the same companies actually) charge (even after their expenses) a higher fee than federal taxes to be part of their store, compelled by a series of hidden ecosystem costs to the consumers, monopolization tactics, and network effects. That company in Europe with the low profit per employee is potentially paying out 30% of their gross (taxes are at least only on net) to one of these.
Basically many of these jobs are "bullshit jobs," working on problems the companies themselves create to rip people off.
High value workers in the USA are the best compensated in the world by a wide margin. Other places are better for low value workers.