Each man had the tools to be a successful trustee of his master's money. And that is what this story is about, not equality of gifts, but the individual faithfulness with which we develop our individual capabilities. The managers who used their abilities to increase the size of their master's holdings did not treat the money as if it belonged to them. Each understood that they had been placed in trust and trust demands an accounting. Growth, in whatever realm, is possible only if there is room to receive.
Faithfulness is rewarded by enlarged capacity.
A small cup may overflow as well as a large one. Grandad Bittinger, my Mom's father, had a folksy way of demonstrating the results of overflowing capacity. Day after day I watched him pour coffee into a cup, fill it right to the rim, and then tip the cup so that coffee poured into the saucer which sat beneath it. Eventually curiosity prevailed and I asked about the strange custom. Grandad was right.