As I recall, Frodo asked Galadriel why he could not read the minds of the other ring bearers, or command them. Her response that he had not tried, and she warned him not to try. He would have to train his mind and will in order to successfully use that power. I suspect he would have more likely attracted unwanted attention from Nazgul than any other result if he tried to use that power untrained.
I suspect Sauron's, the Balrog's or Melkor's power over the orcs would be the same thing. Command through will and fear was part of what Sauron does, and he put part of that power into the Ring.
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