1. Attract software companies

While minimal infrastructure investments would need to be made to entice software companies, their is a political price to pay by allowing young business people into your country who likely will out-earn the average resident (many historical examples of this). This makes the majority of people unhappy, but brings in educated-non-criminal customers and tax dollars. Lets say Germany does (1) great, they attract 1000 smart europeans to found companies, and 10 years later 1 of those companies becomes a megacorp.

2. Keep software companies happy

10 years has passed, new politicians are in charge. Pursuing #1 is a separate strategy to #2. I would hope i live in a country that wants to (1) attract young talent and (2) keep talent happy, but of course thats not necessarily true. The new politicians in charge need to appease the majority of people again as its election season!

I think Germany / USA can't really have an honest conversation about this as Germany + USA already have highly progressive tax systems. A significant % of USA and Germany residents don't pay any reasonable amount of tax, and are drains on the tax system. I assume these %s are likely projected to grow in the future rather than decline.

If the price of bread happens to rise? Then our politicians and voters will support squeezing more tax out of productive sects of society for the short term gains. Then those productive and mobile members of society will slowly move elsewhere.