From the text:
The achievement of socialism requires the solution of some extremely difficult socio-political problems: how is it possible, in view of the far-reaching centralization of political and economic power, to prevent bureaucracy from becoming all-powerful and overweening? How can the rights of the individual be protected and therewith a democratic counterweight to the power of bureaucracy be assured?

Greed and the desire for power are the reasons for the
fear of a more socialistic society.

The wealthy are seeing now that by hoarding the wealth the middle class has no means to purchase products manufactured by the businesses owned by the wealthy.

Stop being so reactionary and listen to the logic....