Not yet...they're still in the early stages of enjoying the fruits of capitalism...too early to start feeling guilty.
The bar chart, taken on face value, is very misleading. If you read the fine print underneath, it states "so high because the economy (of S'pore) relies heavily on oil refining, petrochemicals, and shipping industries, which use a lot of oil." So all of the oil used as raw materials for the production of gasoline and petrochemicals in this small city-state manufacturing center on steroids, as well as the use of Singapore by many as the distribution hub for supplying goods throughout Southeast Asia is thrown into their "gallons used each day per person" number. Even though the results of this manufacturing are by and large exported, and not consumed internally by Singaporeans.
All the other countries data is similarly determined.