Without ownership, your inputs are very closely tied to your outputs. In almost any salaried job, even one paying a lot per hour like a lawyer or a doctor, you’re still putting in the hours, and every hour you get paid.
Leverage is a force multiplier for your judgment.
Labour: making other humans work for you. It is the oldest form of leverage, and actually not a great one in the modern world. Because managing other people is incredibly messy.
Money: every time you make a decision, you multiply it with money. It’s how wealth was created in the last century.