You have been misinformed. Many entrepreneurs had a social conscience and did good in the world. Even Rockefeller. While he ran Standard Oil he brought the price of kerosene down from $1 a gallon to 6 cents. Many people around the world benefited. He also gave away millions to education and charity. I know it is fashionable to think he was some kind of monster, he wasn’t. Suggest you read “Titan” for more information.
There are plenty of other examples I only mentioned him because you did.
Heard of a guy who leases those credit card/debit card terminals stores use. It took him a couple of years to get enough customers but once he had a few thousand out there at $39 a month he was rolling in money.