Former leads to huge immediate profits/selfish gains while latter leads to sustainable approach so that the resource may last for future generations too.
Detailed Answer.
Exploitation of natural resources with short term gains aims at providing all the benefits to the current generation for their growth and development without any consideration for the future. In case of long term perspective, the resources a.re utilized in a more judicious manner so that they are also conserved for the future generations. It ensures uniform distribution among the people.