"I think your vineyard workers example actually makes the opposite point you intend.
These people are being paid UN-fairly. They're not being given an equal amount. Some are getting by easier, which prompts complaints and envy, which in turn prompts a rebuke.
Why? They were ENVIOUS of those who'd gotten off easier. This isn't good news for Democrat rhetoricians.
They were envious. And the rich man said, "Get over it. That's the way I do things."