It was investigated, the issue is that the fines are smaller than the profit. I would personally want to see things like this considered fraud and that it can result in prison sentences for executives and other people invovled in the decision making.
Corporate fines should all be percentages of profits.
You want prison sentences for execs if you were charged $1.50 for a can of corn instead of $1.45? Surely you can't be serious.
Ya the problem needs to be a fine the first time, second time it’s fraud. Allow for honest mistakes. Punish for clearly defrauding customers. We really need jail time for execs making these decisions but that rarely happens.