"If socialist countries don’t become totally destitute, it’s because they manage not to mess up capitalism completely." or lucky enough to have a goose laying

"If socialist countries don’t become totally destitute, it’s because they manage not to mess up capitalism completely." or lucky enough to have a goose laying golden eggs. i.e. the North Sea https://en.wikipedia.org/wiki/North_Sea_oil https://en.wikipedia.org/wiki/North_Sea_oil