People do not normally warrant such casual and, frankly, ill-informed labels as "psychotic" as a general description.
It would be more accurate to say that people may have episodes of psychosis.
Some experience this once only. Some experience multiple episodes of psychosis in the course of a long illness, such as schizophrenia or bi-polar disorder.
Someone may be considered to suffer from schizophrenia but not be psychotic for very long periods, if, for instance, their meds are working.
Generally one would talk about someone experiencing an episode of psychosis, rather than labelling them as psychotic, which is a blanket term and not accurate about most people's experience.
Some people (many people with schizophrenia, for instance) retain some positive symptoms, such as auditory hallucinations, in an ongoing way, but at manageable levels. I think they would be described as having some psychotic symptoms, but not as being psychotic.
I know that some people can be experiencing florid symptoms of psychosis, and appear relatively normal at first glance, but many people experiencing psychosis (which is often utterly terrifying) look utterly terrified and it is quite obvious that they are unwell.
People in remission from periods of psychosis function at various levels of wellness. Some continue to have negative symptoms, and are clearly "different"...some are as normal as anyone gets.
Given that you are talking about sociopaths/psychopaths I am unsure why psychosis came up.
These people are not "normal" but they are not generally suffering from what we label as psychosis.