What is the implication of sending official collectors (Sa'i) regarding debt and Zakat on apparent wealth?

Primary text

The practice of sending collectors to take Zakat from the owners of apparent wealth without them inquiring about the owner's debts demonstrates that debt does not prevent the Zakat obligation on these assets, as the primary concern is the immediate collection of the due amount due to the greater need for its preservation and the stronger claim of the poor upon it.