All resources are not finite. Land may be finite. Human ingenuity most definitely is not.
This; the value of a resource, and thus the wealth it can provide to its owner, is not fixed. Find a new use for lead, for example, and its value increases. As the value increases, so does the potential wealth of everyone who owns lead, without diminishing anyone else's wealth. The total value of resources in a free market will tend to increase indefinitely as new uses are found.
