I think that the microscope had more benefit in terms of medical science, because people began to understand in greater detail what they were made up of. It also helped in terms of genetic engineering, which also is a part of medicine.
The telescope was more a stepping stone towards development in science, as it set new frontiers for people and made people think further than just earth.
So I think that the microscope was more of a help towards society, but the telescope mad people think beyond what they thought were our limits.
(Also, isn't this in the wrong thread, shouldn't it be in discussion, just wondering)