Wealth is something that every man pursue in meantime, as sustenance is another part. Along with the improvement of technology, what seems small holds a large value. Billionaires, Millionaires, and why not create the first Trilionnaire in the 21st century.
Man can adapt to anything. Say, a natural disaster where a country like Japan does best. The Japanese can modify themself into living in the Ring of Fire. Once demolished, rebuild it, but the best one is to sustain the worst. Precaution and after-effect help is given needlessly, the people changed their condition! And perfection does not exist in this world, there may be some defects.
But rising sea level? Only greed is left unscattered. Almost 8 billion people to feed, with the poor living conditions. It is where sustenance comes into its role.
The man never left the wealth, but the wealth left the man. Ah, alas, I can barely sleep tonight.