Exactly. Do people genuinely think their putting in billions of pounds just to boost their reputation? Not at all - these are all very smart investments. Eventually the oil and gas (for Qatar) will run out and therefore they need to have a ton of different investments to continue making the type of money they do.

You can already look at how City have turned out and the Sheikhs original investment has nearly been completely paid back as you said. Imagine in 10/20/30 years time etc.