A Citizen of the world or not?

What would one define a citizen of the world? What would one have to demonstrate, provide and contribute to the world to receive this title? Maybe responsibility, respect from and toward others, or would they have to discover a new invention that could change people's lives forever? Many people think that Benjamin Franklin would deserve this title. A true inventor, politician, philosopher, and poet. However, where there is good, there also is bad. Benjamin Franklin was also materialistic, a liar, and a poor father and husband. This is why Benjamin Franklin does not and should not be considered a citizen of the world.
First, in "Poor Richard's Almanack."there are many sayings that would fit under the title, "The Way To Wealth," that would basically summarize Franklin's materialistic views. One example would be, "virtue to the end, is making yourself rich." Another example of this is one of his excerpts that state, "There are three faithful friends, an old wife, an old dog...