The attempt to reconcile the working class to the state was carried as far as the ruling forces dared; further efforts in this directions would have ment abandoning the very foundation on which the empire rested – the semi-absolutistic and bureaucratic principles of the regime.
Source: Franz L. Neumann: Behemoth: The Structure and Practice of National Socialism, p. 3.
What is the exact meaning of the phrase "as far as the ruling forces dared"? I mean that the excerpt tells that the incorporating of the workers into German Reich was primarily possible due to willingness of the ruling class and therefore it was limited. But how would you rewrite or paraphrase "as far as the ruling forces dared"?