The eternal battle between Reshiram's realism and Zekrom's idealism is a conflict which has reverberated throughout Unova's history, and is a concept so universal that Unovan historians have seen echoes of it in the histories of many other lands as well. As Reshiram's fire clashed with Zekrom's lightning in the heavens, so did their respective temples and followers clash on the world's surface. The first major political disputes in Unova were between these two factions, and although new ideologies have risen since, many have seen their disputes as simply the same ancient proxy struggle between Reshiram and Zekrom, albeit under different names.
Reshiram's followers have not tended towards any great animosity towards Zekrom's, viewing them as fundamentally naïve and blinded by their idealism towards the way the world works – although they believe that should Zekrom ever triumph, it would prove disastrous. They are generally the more traditionalist of the two, and at times are prone to mistaking their present customs for a fundamental truth about how the world works – a viewpoint undoubtedly aided by the fact that Reshiram, and its associated viewpoint, has typically had the upper hand. They have been criticized as misanthropic, and the systems they design often take human failings as a given, but they should not be mistaken for the villains which Zekrom's partisans have accused them of being; although they believe some injustices impossible to eliminate, their policies are motivated by a desire to channel and restrain Man's negative qualities for the greater good.
Reshiram has rarely needed to directly intervene on behalf of its followers, and has most often been summoned as a defensive measure, when Zekrom's followers seek to use their god's power to turn their ideas into reality, and Reshiram's power has been required for its partisans to stand a chance.