"If you research police corruption you'll probably find out the police are corrupt."
Large corporations and the police both have statistically significant problems to be a concern to the average person.
Frequency isn't the issue it's recurrence across municipalities. That's what makes it clear there is a systemic issue.
Imagine if we didn't make laws about murder because "It's not that frequent of a problem only 1 in 500,000 people are murdered"