Almost impossible to answer because it requires some demonstrable insight into the individual's psyche - and Rawat works very hard to obfuscate anything about his own beliefs that might expose him to criticism.
The question is I suppose:
Does Rawat genuinely believe that his words and his introduction to the Knoweledge actually effect something real and uniquely beneficial in other people ?
My answer is that if he does - ( and I perceive his willingness to pursue cynical self interest, as an argument against his being anything other than a fraud) - then I would still not characterise him as a pious fraud but rather as a narcissistic megalomaniac who happens to have settled upon a religious theme on which to base his self agrandising project.
Certainly if the specific meaning of piety - dutiful devotion to God and/or observance of religious priciples - is considered, there is nothing in Rawat's life that appears anything other than selfish, areliogious, materialistic and devoid of any moral referrance.
I really can't see Rawat in the role of a self harming stigmatic.
N