Can you give an example for one such lie coming from Ram Dass? I'm not saying there isn't one because I'm not familiar with his work but I'm familiar with another "flawed" guru, Alan Watts. And while you may not enjoy his ideas or think he is correct it would be very hard to call him a liar because what he does is simply take reality and give you another angle to look at it from.

These spiritual gurus are like a distinct type of art. Not everyone is partial to it but certain segments of the population are more likely to find something in it that moves them. You may call these people fools but it's not much different then holders of one political viewpoint viewing the holders of the opposing one as fools. These are just perspectives, there are no absolute right and wrongs here (leaving aside some extremes), because the human experience cannot be narrowed down to science.