Government spending on bureaus like the FDA, EPA, and BBB give consumers and citizens access to outlets for complaints against dirty businesses and give us a decent amount of protection against those who would harm us to gain more of those dollars you think they'd rather have in their own pocket.
Some evidence to the contrary: http://www.brookings.edu/~/media/research/files/papers/2015/...
There's always costs of utility forgone to putting upper bounds on heterogeneous consumer preferences, and as it turns out, they can be rather severe.