Conviction can be a great motivator. Having solid Faith or Belief in something is often respected and admired. Issues arise when our Certainty becomes something that others must adhere to.
There is an element of responsibility that comes with sharing our viewpoints, even when we feel strongly about our ideas. Unless we have permission to share our opinions, people hearing what we have to say may pass it through a filter that will eliminate the value of the content due to the delivery, not the message. It is true that it’s not what you say, but how you say it.