The question is always what fair use is. Phone contracts with unlimited data set the fair use clause in Austria to 1.5TB a month and have no such limitation for data only sim cards (home use).
On the other hand unlimited in Germany often means ISDN speeds after 50GB.
I live in Switzerland and we have quite a lot of unlimited plans without speed limit after a certain amount of data. Also the price in relation to income is not that high. If I compare it to Germany, where you can get no real unlimited plan and very often have a bad signal even in cities, and also in relationship to the income there, Germany seems to earn a place much lower on the list.
So this comparison seems a bit odd, and should be divided into prepaid plans with limited data packages and unlimited plans.
On the other hand unlimited in Germany often means ISDN speeds after 50GB.