I believe their tuna plant workers on American Samoa were being paid under 3 dollars per hour while the HKs amassed their palatial mansions.
They were being paid the American Samoan minimum wage for tuna industry cannery workers, $3.05 per hour in
1995, $3.26
today. This rate is set by a special industry committee appointed by the U.S. Department of Labor, and varies by industry. There's nothing illegal about that. I'm sure Heinz workers in other places were paid much less.
As far as I can tell, R.J. Heinz Co. no longer owns the American Samoa Starkist plant. It was sold as part of a larger transaction to DelMonte in 2002. Tuh-ray-zuh received DelMonte stock in that transaction, which she sold in 2003.
We need to remember to keep the R.J. Heinz allegations in perspective --- Tuh-ray-zuh has sold most of her Heinz stock, and owns only about 4% today. It may not even be her largest stock holding.