So your saying that one could only obtain right view if they learn it and practice it entirely from the Dharma? Sounds robotic and superficial to just do as you are told without experiential discernment.
The Dharma is designed to show a way of life to which one is likely to obtain personal liberation, first through mental development and ethical conduct and then, through wisdom. The Dharma, for you and I, is the best way to build a foundation for proper conduct but, it is not the only way. To assume that it is such is to construct a limitation. In doing this, you create an other mental state to which one must overcome in personal liberation.