"Value created by you" is not necessarily dependent on your skills alone. You might be the best Java programmer in the world, but if you get hired to write some boring CRM system for internal use in a bank, then the value you created is limited by how much money said bank wants to burn on internal development efforts.
On the other hand, if you get hired by FAANG and work on the "next big thing", like, say, new operating system for smartphones, then the amount of money that can be made from it is virtually unlimited.
The difference between the US and Europe is mostly that: cool, product-focused jobs are all in America, Europe only has the boring, low-risk, low-reward ones. Europe needs to innovate more, that's it.