well...according to me short term aims do not involve conservation of natural resources..... so the advantages would be something like over exploitation of resources would result in the development and progression of the nation... that is establishment of industries by making maximum use of energy which results in the improvement of the lifestyles of the people ( higher standards of living and increase in the income of the people) .... and if you ask about the disadvantages then they are: increase in the pollution levels, global warming, depletion and shortage of resources etc. According to me long term aims contribute towards the conservation of the natural resources for the future generation (sustainable development).