socialism renders man cruel & indifferent to men, in the name of mankind.

socialism renders man cruel & indifferent to men, in the name of mankind.  socialism makes men cruel & indifferent to mankind, to advance mankind.

is this good? 

it all depends upon what your definition of "good" is.  it all depends upon what your definition of "to advance mankind" is.  it all depends upon what your definition of "is" is.  [to borrow a phrase.]

socialism attempts to reduce the complexity of society to make it rational, to eliminate inequity.  generally speaking, it succeeds only in reducing man, and eventually eliminating the dignity and grandeur of mankind.  it completely corrodes all concept of the elevation of man, of men, of mankind.