A controller of a small fruit-packing company in California stole $212,000 from the company. When asked why,

Question:

A controller of a small fruit-packing company in California stole $212,000 from the company. When asked why, he said, “Nobody at the company (especially the owners) ever talked to me. They treated me unfairly, they talked down to me, and they were rude to me. They deserve everything they got.” What could the company have done to prevent this fraud?