Popular culture has the unfortunate habit of presenting Richard as an overall good king BECAUSE he was an effective military leader. However, this presentation is inaccurate because if you take his entire reign into consideration it becomes patently obvious that he greatly struggled in non-military governance, thus making him a poor king.

My original comment was directed at the issues surrounding popular culture because they often present their work as factually accurate or 'based off true events' and as a result the audience will go 'okay so now I have an accurate idea of *insert topic*'

Just in response to your second sentence: Partial truths are still inaccurate. No one is going to be happy with "Well its mostly correct." If you're learning about something you're going to want a full understanding of the subject, not bits and pieces that give you a partial understanding. As a professor once told me, "The devil is in the details, if you don't address the details he'll make an ass out of you and I."