How does Ethereum smart contract make money?

In a simple example of an Ethereum smart contract, a user sends a friend 10 ether – the token native to Ethereum – but requires that it can’t be dispersed until after a certain date using a smart contract .22 Tem 2021

It costs $436 to deploy a smartcontract on Ethereum | Hacker News.

The best way to make money through ethereum smart contract is by setting up an ethereum smart contract based MLM platform . You can make millions by setting up such a platform. All you need is expert’s guidance and technical assistance.

Well, the smart contract version isn’t that fun to play. [TL;DR] Using a ‘feature’ in the Solidity programming language it is possible to create smart contracts on the Ethereum blockchain that look completely legit ; however, everyone that sends money to the contract can never get it back due to that ‘feature’.