Consistent compliance with Wikipedia policy is more important than your personal beliefs. Inconsistent compliance is a good sign of activist editing.
For example, if you assert something, and are presented with countering evidence from a reliable source, do you consider changing your position like a reasonable editor, or do you ignore it to argue your position?
When you join a wiki community, be a constructive editor.
A page history shows the order in which changes were made to any editable Wikipedia page, the difference between any two versions, and a menu of special external tools. wikEdDiff merges all edit changes in to one wide diff view. The two column raw diff view will still be displayed below the wikEdDiff version.
Easiest install is at the Gadget tab in user Preferences. Check off: wikEdDiff, improved diff view between article versions (not needed if wikEd is used); save; purge. Can also be installed as a User Script.