When carnegie argues that " this change " should be welcomed to what change is he referring

It refers to the growing wealth gap between those who are at the top of the economy and those at the bottom. In his article "The Gospel of Wealth", published in 1889, he speaks about the responsibility of those individuals who harvested their wealth by their own means, known as "the new rich". According to Carnegie, the best way to manage wealth is responsible and conscious manner, producing the greatest benefit for society.

whose power in the senate is equal to the power of the speaker of the house?