I think Katharine has highlighted a problem which always existed: people in the countryside suffered from being tied to the land and low wages, but they had the ability to grow their own food. People attracted to towns in the industrial revolution and after by seemingly higher wages found they lost out because they could no longer grow much of their own food.
In my family, I am told, during WW2 those who lived in towns and cities relied heavily on relatives who lived in the country bringing them home-produced food. With the relatively efficient public transport system, it was not difficult for people from, say, Suffolk, to make a trip to London with a basket of goodies for their city cousins.
Reading through the MO published diaries, there are constant references to people making such trips and taking with them pots of jam, preserves or a joint of meat. It does seem on balance that during WW2 the people who lived in the countryside were far better off in terms of food and general comfort than those who lived in the cities. But it is also interesting to note from those diaries the number of city people who went to stay with country relatives to get away from the bombing, but who - whilst enjoying the break - couldn't wait to get back home.