>Around 70% of American billionaires made their money themselves, while in the EU a similar share inherited it.

The top 100 wealthiest Austrian families own two thirds of the country's wealth <https://news.ycombinator.com/item?id=36755835>, and none of the wealth came from tech companies. The same is likely true of Germany with one exception: SAP.

Put another way, the two wealthiest German-born tech people (except the founders of SAP) are Peter Thiel and Andy Bechtolsheim, both of whom earned their billions in the US.