This is exactly the mentality that escalates to murdering those who work harder than others in order to reap larger rewards. You call everyone who fits that bill "criminals."
Remove money from the equation and it becomes pretty simple. I work twice as long in number of hours tilling fields and planting crops. As a result, I produce twice as
much as anyone else. According to you, I'm a criminal for having twice the income.
Money masks the root issues, and is used as a convenient excuse to accuse people of greed. Yes, there are greedy people, and I am entirely supportive of taxing and regulating production of capital simply by manipulation of other capital. The systems that allow it rely entirely on State support, and as a result should not enjoy any of the rights of natural persons (collectives which operate without State support excepted). However, not all motivated people are extracting wealth from others. Plenty of value can be created by trading for materials and adding value. A carpenter who works twice as many hours should not have the excess taken from him simply because the average carpenter works half as long. Substitute any field you like, and the same tends to be true.
If you try to make income "fair" with communism, you do, in fact, have to disincentivize working more than the average. Since the only way communism actually works given human nature, it necessarily requires ruthless dictators to enact.