I guess what OP is trying to say is that "human wants are insatiable". Since resources are limited and scarce we should have a scale of preference is the only way to make sure the resources we have available are enough for us.
Your words are correct, but there are always sufficient resources to cover those desires, as the increase in desires means that there is a demand, and therefore ideas are generated to meet that demand.
Thus, even if the resources are scarce, there are enough ideas to convert untapped resources into materials fit for human use.
Let us take an example of water desalination. In the past, people relied on rain water and rivers, but the increase in population density forced them to desalinate sea water until the waste water was reused.