The problem here is that people are using a term that has a long and colorful history in a very imprecise manner. Sociopath hasn't been in the literature for years, but people still seem to use it interchangeably to speak of antisocial behavior and/or psychopathic traits which are not at all interchangeable.

The DSM doesn't even list psychopathy as a diagnosis any more, only antisocial personality disorder which requires a history of, and we might as well just quote the DSM "... a pervasive pattern of disregard for, and violation of, the rights of others..." So yes, a diagnosis of ASPD does generally indicate someone who could be considered dangerous to others.

Now if we're talking about someone with psychopathic traits that scores high on a Hare, then no it does not necessarily indicate dangerous behavior. However, a Hare is still important when dealing with criminals as you do not want to give a psychopath treatment as it simply makes them better criminals.