The moment an inspector is paid per referral, every defect they write acquires a price. That is the whole problem, and it operates whether or not the inspector consciously inflates anything. A financial interest in the volume of findings compromises the independence the client is paying for, and it is unverifiable from the outside — the client cannot tell an honest report from an inflated one, which is precisely why the arrangement is prohibited rather than merely disclosed. Most standards of practice and many state licensing statutes bar compensation for referrals outright, and some bar the inspector from performing repairs on a house they inspected for a defined period for the same reason. The correct answer identifies the mechanism rather than a side issue, because the mechanism is what makes the arrangement impermissible even when every individual finding happens to be true.