That's right. Life is too annoying to just be some magnanimous benefactor to anyone. So instead why not just even it all out with debts and repayments?

[That's actually not how she views things. Her "debts and repayments" system is all about justifying keeping people as a part of their life. After all, she cannot allow those indebted to her to leave before they've repaid her. And those she has become indebted to, well... she cannot very well ignore their existence when she owes them. It all makes sense. It's practical, logical, and now one can fault her for it.]