No, you are viewing them from what you believe an educated and civilized society would, your educated and civilized society. Which is you viewing them from your time frame, and not his.
His time was also one of education and civilization. They just had different standards.
Just as Truman's actions (which you keep avoiding) were viewed in his time as coming from an educated and civilized societal viewpoint, so will someone in the future try to use propaganda and bias to sway the weak minded that Truman's actions were criminal (in their educated and civilized time frame) even though they weren't.