Therefore, if you're okay with the amount of money you'd get, you'd probably be better off if you're not living in a large city, because, rent aside, city living is a bit more expensive. Also, considering that you're supposed to look for work, living in a city (where the jobs are, if they are anywhere) would increase the chances of you being expected to take a job, which you wouldn't have to in more rural areas.
People still move to the cities, even though the job market isn't promising for low-skill workers there either.
There are certainly many reasons, but some I believe to be involved: it's harder to get an apartment when you're on social benefits (even more so if not in the community you're currently living in), it's harder to live in a rural area if you don't have a car (which you'll likely not be able to buy while on benefits), few people have the means to move when money is tight.
That'd only work on monopolies where the company would actually have a 1000% margin. For most things, you'll invest in some great new automation, but so will your competition. Now you've both increased productivity and if you try to cash in your 10x profits, your competitor will simply take 5x profits, massively undercut your prices and you'll be gone very soon. Productivity gains will typically lead to lower prices, that's why meat, milk etc is dirt cheap these days, if we still had food prices like in the 50ies but with today's productivity, any secret illuminati meetings of the 1% would see a lot more people arriving on tractors ;)