A brief summary.
The wealth of (say) a company is generated by everyone involved, to a greater or lesser extent. A CEO, no matter how good he is at running a company, can create nothing without the "workers" that actually build the products. The workers, left alone, would produce some stuff but it would be disorganized and of lower value without leadership, designers, salesmen and so on. Everyone contributes.
Now it gets more difficult. I hope nobody will disagree that ideally everyone should receive an equitable share. How that is based is where it gets difficult, and getting those that are the winners under the current system to agree to any change is even more difficult.
"If I ruled the World" I would institute an income, sufficient to live at a "basic" level, that everyone would receive regardless of other factors. Then we could discuss how the rest of the wealth is distributed, based on some measure of contribution to its production. (I'm talking about society in general now, not just one company). That would eliminate poverty without the problems of systems like communism.