I must first give an obvious disclaimer . . . I have no real clue as to what the real story is. I have no personal insights more than the average person.
With that said, I think, like with most of life, the two extremes are most unlikely. On the evil side, I think it is unlikely that Greg is a "complete fraud" from the same mold as a Benny Hinn (or 99% of TV evangelists).
On the saintly extreme, I don't think that Greg is perfect and all the criticism is part of some satanic plot to discredit his good work (or if you are not so spiritually inclined, an opportunistic reporter trying to destroy a good man just to get attention).
Like the complexities of life itself, I'm sure that the truth is somewhere in the middle. I suspect that Greg is a decent man, but like me, is prone to self-promotion and seeking a boosting of his feelings of self worth by the praise of others. I suspect, on the financial front, he is simply rather sloppy. I could be proven wrong later.
I've said before, that when I've gone on "philanthropic trips," I suspect that 10% of my motives are purely for the good of the people I've come to serve. The other motives are made up of a personal desire for adventure and the lifting of my feelings of self worth by the praise of others.
I can remember when our small town newspaper did a front page story (and it covered most of the front page) about me going to Pakistan after the earthquake. I gloated. I drove to work that morning with a spring in my step and my chin a little higher. I wish that the photo of me had been a little clearer as I was dying for someone to run up to me and say, "Hey, aren't you that guy who went to help the poor Pakistanis?" However, that never happened. But I did know that everyone who knew me would know it was me. I got to speak in front of my church. That was a double self-worth boosting experience. They thought I was a decent person and more godly too.
So, my experience (newspaper story) is <.01% of the attention that Greg gets. So could all his praise have gone to his head? Of course. We are all human and far more deceitful, self-centered than any of us would readily admit.
For now Greg is still my hero, even if only 10% of what he has done was true. I still believe in his cause, even if he has exaggerated his accomplishments by a hundred fold. I hope that he has not lied about the money.
But our heroes must be broken, fallen and vulnerable. If he turns out to be a complete fraud . . .yeah, I will have to take him off my pedestal.