Nobody really denies this (except hardcore commies).
What is reprehensible is the attitude of the capitalist, which has existed forever & was noted by Adam Smith himself:
"The proprietor of stock is necessarily a citizen of the world, and is not necessarily attached to any particular country. He would be apt to abandon the country in which he was exposed to a vexatious inquisition, in order to be assessed to a burdensome tax, and would remove his stock to some other country where he could either carry on his business, or enjoy his fortune more at his ease." – Adam Smith
"As soon as the land of any country has all become private property, the landlords, like all other men, love to reap where they never sowed, and demand a rent even for its natural produce." – Adam Smith
"In the long-run the workman may be as necessary to his master as his master is to him, but the necessity is not so immediate." – Adam Smith
"A man must always live by his work, and his wages must at least be sufficient to maintain him. They must even upon most occasions be somewhat more, otherwise it would be impossible for him to bring up a family, and the race of such workmen could not last beyond the first generation." – Adam Smith
"Our merchants and master-manufacturers complain much of the bad effects of high wages in raising the price, and thereby lessening the sale of their goods both at home and abroad. They say nothing concerning the bad effects of high profits. They are silent with regard to the pernicious effects of their own gains. They complain only of those of other people." – Adam Smith
"With the greater part of rich people, the chief enjoyment of riches consists in the parade of riches, which in their eye is never so complete as when they appear to possess those decisive marks of opulence which nobody can possess but themselves." – Adam Smith
"A merchant, it has been said very properly, is not necessarily the citizen of any particular country." – Adam Smith
"All for ourselves, and nothing for other people, seems, in every age of the world, to have been the vile maxim of the masters of mankind." – Adam Smith
"Labour was the first price, the original purchase-money that was paid for all things. It was not by gold or by silver, but by labour, that all the wealth of the world was originally purchased" – Adam Smith
"The government of an exclusive company of merchants is, perhaps, the worst of all governments for any country whatever." – Adam Smith
"Wherever there is great property, there is great inequality." – Adam Smith
"Civil government, so far as it is instituted for the security of property, is in reality instituted for the defence of the rich against the poor, or of those who have some property against those who have none at all." – Adam Smith
"We rarely hear, it has been said, of the combinations of masters, though frequently of those of workmen. But whoever imagines, upon this account, that masters rarely combine, is as ignorant of the world as of the subject. Masters are always and everywhere in a sort of tacit, but constant and uniform combination, not to raise the wages of labor above their actual rate." – Adam Smith