He may not be exceptional depending on how you define exceptional ... but the system in Singapore has helped the country grow from 3rd world to first world standards. We have gathered recognition from all over the world despite our smallness of a nation.
To a certain extent, his father , LKY had done much of the work.. laying the foundations and building upon it carefully over the last 50 years. Nevertheless, his job is no less lighter as he faces a very different challenge today from his father's times. Is the economy doing well... is the people living and working well together ? Is our future bright ? That will be the marks of exceptional leadership.