“The landlord is operating a business, not a charity. If he can do better building houses on the land, then it’s called capitalism”.
That type of statement reminds me of an old industrial anecdote, almost certainly apocryphal, but which went something like this: A capitalist factory owner had just sacked all his workers and was proudly showing off his new un-manned, fully automated washing machine production-line to the trade union official. “There you are,” said the capitalist to the union man, “these robots will now make washing machines all day every day, never demand a pay rise and never go sick or on strike.” “That’s all very impressive,” said the trade union official, “but could you tell me, please, just how many of your washing machines do these robots actually buy?”
It may be stretching it a bit in the case of Mamod, but the obvious moral of this tale is that if the workers don’t have an income then they won’t have the means to buy or rent houses.