In the article Price Controls Create Man-Made Disasters we learn that although the Iowa attorney general has imposed Iowa’s anti-price-gouging rule (Price-gougers beware, Attorney General says), the likely effect will be “shortages of needed supplies, long lines, delayed repairs, and, perhaps, increased incivility.”
The price system is very good at allocating scarce resources. That’s certainly the case after natural disasters, where things as necessary as drinking water may be in short supply. Allowing the price of even essential items rise to high levels means that hoarding is discouraged, leading to more widespread availability of goods as necessary as drinking water.
Officials appear humanitarian when they impose anti-price-gouging measures, but this is just another example of the actual effect of something being very different from the intended effect.