Landlords deliver value by managing and providing a physical space to work in, but when the landlords have lobbies and use their political power to artificially restrict the supply of space and jack up the prices to no end, then it is evil.
The landlords are therefore parasitizing the economy.
Although this article is about commercial space, residential space is just as outrageously priced. I think there should be three things that should never be allowed to be artificially restricted just for the greed of a few: food, water and housing.
Here's a good Economist article on this: http://www.economist.com/news/briefing/21647622-land-centre-...