he man of wealth thus becoming the mere agent and trustee for his poorer brethren, bringing to their service his superior wisdom, experience and ability to administer, doing for them better than they would or could do for themselves.
This statement feels like a weaker argument for Andrew because he is assuming that the wealthy know what is best for the poor, it almost suggest that the poor don't have a voice
This, then, is held to be the duty of the man of Wealth: First, to set an example of modest, unostentatious living, shunning display or extravagance; to provide moderately for the legitimate wants of those dependent upon him; and after doing so to consider all surplus revenues which come to him simply as trust fund
I think this is a way that he is proposing a solution to the problem by saying that wealth is not personal but public trust
so that the ties of brotherhood may still bind together the rich and poor
I think that this is a great way that Andrew Carnegie used ethos because he is using it to connect to moral duty or brotherhood