well he failed, because thais of all ranks seem to use those words unfailingly.I'd say it had the exact opposite effect, and introduced a social caste system of grovelling via its use into the language, with those who wish to demonstrate their superiority or contempt avoiding its use.
i would opine that the caste system was infinitely worse before he, fascist that he was, tried to introduce some civilized behaviour into what was mostly a medieval society.
i find that those polite participles to be a great leveller when dealing with either those with power over me, such as the police or immigration officials, or with societies lower orders such as taxi drivers, beggars, waitresses and security guards.
the nature of your original and subsequent post here suggest that you cannot speak thai, so their usage shouldnt really bother you one way or another.