I have often been accused of being unnecessarily cruel to fat and obese people. However, I do feel they have a valued place in our society.
The fat have a significant impact on the property market. Their humongous bulk affects the supply and demand of houses. Much like Daleks, they are unable to negotiate stairs, thus restricting them to the bungalow market. This reduces the demand for multi-storey accommodation. Which in turn lowers house prices for normal people.