Hey thanks. I actually knew that he rejected that society who trained him.This was kind of the opposite of what happened. He was chosen at a young age to be some kind of leader, but rejected the thing he was supposed to be a leader of (some group affiliated with the Theosophical Society) and spent the rest of his life preaching (kinda) that no one should ever let anyone else fill their head with ideas, no authority should ever be above questioning, etc. Kind of the penultimate 6w5, I think. He even had outbursts at people for too easily accepting the ideas he was preaching, if I remember correctly.
Would he have become famous in his field or would he have entered that field if it wasn't for theosophical society? I think he wouldn't have even been known. Also he grew up in that society and was educated by them since he was a kid. It is natural to assume that it would result in the majority of his thoughts to be in line with philosophy.
However, he did reject their ideas which means he grew out of childhood brain poisoning OR he simply felt smothered by the society and chose to leave much like most children eventually feel about their parents.