"The conservative way has proved to be a very stable path towards improvement. Slow, but stable. Stability and balance, are in my opinion, the most important characteristics of meaningful improvement."

Can you give some evidence supporting the idea that this has been proved?

My thinking is that technologies are improving at a non-linear pace, and technological change leads directly to social change. Given that, a conservative approach often leads to policies which are out of touch with reality (as political/social trends diverge).