The reason why Suboxone is comparatively so safe is that it has a “ceiling effect" in which a patient cannot get too “high” by using it. The ceiling effect means that, unlike pure opioids, the euphoric effects of Suboxone will level off after a certain dose. This makes it hard to overdose or get “too high” on Suboxone, unlike other opioid medications.
That being said, individuals are able to get a “high" feeling from Suboxone if they have never used it before, which is why it does sometimes have “street value”, meaning people will sell their Suboxone to others who use it to get some euphoric effects. It is important that Suboxone only be taken by the person to whom it was prescribed.