If States sue a company for ‘extravagant’ costs, should they follow-up in other industries? One can claim that oil monopolies request extravagant fees. Health

If States sue a company for ‘extravagant’ costs, should they follow-up in other industries? One can claim that oil monopolies request extravagant fees. Health industry in the USA is riddled with extravagant fees. I am not sure that the motivation by these States are well-intentioned.