The US as a nation consumes more than anyone else, virtually at the expense of everyone else. The petrodollar system has ensured that imports into the US have been cheap and readily available. Post 1945, Washington has been able to take full advantage of the labour and the material resources of poor countries.
Consider that ‘developing’ nations account for more than 80 percent of world population but consume only about a third of the world’s energy. Also bear in mind that US citizens constitute 5 percent of the world’s population but consume 24 percent of the world’s energy. On average, one American consumes as much energy as two Japanese, six Mexicans, 13 Chinese, 31 Indians, 128 Bangladeshis, 307 Tanzanians and 370 Ethiopians .
The US is able to consume the way it does because of high demand for the US dollar: it is the world reserve currency. This demand for the dollar is guaranteed as most international trade is carried out using it. The international monetary system that emerged from the Bretton Woods Conference near the end of the Second World War was based on the US being the dominant economic power and the main creditor nation, with institutions like the World Bank and International Monetary Fund eventually being created to serve US interests.