Diana
5000 Years Ago
She wasn't called Diana. She was Egyptian, a female pharaoh forced to marry her brother as was the practice of that time and place.
Her brother was gay and she respected him enormously and thought the world would be a better place if he could be himself. 
2000 Years Ago
...she's a big girl, she's standing six-foot threeAnd she wrap herself around you like a well-worn tire
She was 5'11" but people were shorter then, so relatively speaking it paints an accurate enough picture.
She had blonde hair. Bangs in front and the rest was somewhere between chin length and shoulder length. Not quite straight, not really wavy. Vaguely reminiscent of Lady Diana Spencer.
It was radically short for that time and place, in line with her radical ideas about women being people too and deserving human rights.
She had a strong sense of justice and righteousness. 
She was medically knowledgeable and the world didn't yet have germ theory. Average education of these people was quite low.
She didn't know how to explain medical science to them. One day she hit upon using their words and ideas of "Have faith" to get the people to try her potions.
She meant "Believe in something you don't understand, medical science." She meant "Trust me. Just try it and you will see that it works."
She imagined if they experienced it first hand and got healthier, they would live long enough to get better educated.
They decided it was faith healing and God rewards those who BELIEVE in Him. 
Being a working girl afforded her personal independence to largely do as she chose, including her bizarre hobby of caring about the people, and enough income to pay for the ingredients for her homemade potions.
It didn't give her any authority or credibility for telling her patients "It's an STD. Keep it zipped or my potions won't cure you."
Ultimately, they murdered her and her gay bodyguard, the reincarnation of her beloved brother. And they told stories for years about their lives, slowly writing her out of them until the truth was gone and all that was left were ridiculous tales of faith healing attributed to her gay bodyguard.
And thus was birthed a misogynistic homophobic child RAPING religion inspired by a female community leader and medical genius who supported herself as a working girl and attributed to her gay bodyguard.