stronger government regulation and nationalization, your support for large amounts of spending on "education and public services" have been driving politics again and again in German history
Obviously, you are entirely ignorant about recent politics in this country, which copied every neo-conservative idea coming out of US think tanks and added a couple of their own on top of it.
You never learnt the history of social security systems either, or very badly. When Bismarck created the foundations of the social security systems still in effect in Germany, his intention was so right-wing that Republicans would immediately support him as president: He wanted to undercut the growing influence of unions and socialist parties, by creating a stripped-down version of their vision. Now that the working class was not fighting for survival anymore, he could pretend it's a non-issue and catch their votes on other topics.
After WW2, it was the USA that, let's say "strongly encouraged" western Germany and other european countries to adopt what we call "social capitalism", a blend of the cut-throat capitalism of the US and the socialism of the communist countries. A mostly capitalist system with strong social security protections in place. Again the purpose was purely political: America was afraid that especially in war-torn Europe where many people had lost everything, a pure unleashed capitalism with its income gaps and class divides would drive too many people to embrace socialistic ideals, widening the sphere of influence of communist Russia. The purpose was, again, to give people just enough to make the political alternative less interesting.
As for "disastrous results", let's talk about the Wirtschaftswunder and how Germany, #16 in the world by population, became the #1 export nation for many years and has never for the past 60 years not been in the top 3.