If keeping someone's employed is making the company less profitable than it could be if it fired him - why would the company keep paying this person money?
That's an emotional argument without any factual or rational merit to support it. It's meant to arrange the 'working class' as the rulers of the means of production. Standard labor vs capital debate.
I don't understand, why is adding zeroes to already fat bank account is morally different from pulling the account from negative to positive?
When a business is losing money, paying employees is a charity. When the business is making a great profit and decides that it could make even more by hurting/laying off some employees, that is a choice with moral implications.
When there is plenty of ice cream bars for everyone but the first guy who arrives at the cafeteria grabs all of them out of the freezer and proceed to sell them to everyone who comes later, the first guy didn't earn them. He didn't actually increase the amount of ice cream. He only captured the value.
It is possible to not grab every single ice cream bar especially when you have more than you can ever eat. People and companies do this all the time. As a businessman, I don't find it necessary to screw every other party in a transaction in order to feel successful.
If they hadn't done so, 95% of Americans would still be doing brutal farm labor.
For example, Carrier was already very profitable when they decided to outsource to Mexico.
http://www.salon.com/2016/03/22/snapshot_of_a_broken_system_...
"A look at United Technologies’ annual report reveals even more good news: Commercial and industrial products, Carrier’s category, make up over half of UTC’s $56 billion in net sales. Climate, Controls & Security had 3 percent growth in 2015, the highest in the company; it was the only division to increase its profit margin year-over-year. “Organic sales growth at UTC Climate, Controls & Security was driven by the U.S. commercial and residential heating, ventilation and air conditioning (HVAC) and transport refrigeration businesses,” according to page 14 of the report. In other words, air conditioners – what the workers are making in Indianapolis – drove the growth of the best-performing facet of United Technologies’ business."