my VS. your; me VS. you/everyone./grey mass

My sister is applying for an MBA program and she has asked me to review some of her essays. I've asked an American friend of mine to help me out with that. In her essays, once she has explain some situation, she would always do "objective," "impersonal" conclusion using pronoun "you." Something like: Once you have overcame something, you have learnt a new lesson.
And this looked totally normal to me. Whenever I do something, conclusions that I would make would sound the same way - quite impersonal, as if it is an objective truth.
My friend changed all of these conclusions to the personal statements. It is not longer about some "you" people/person, it is about oneself.
I have noticed before even in some (scientific) papers use of personal pronoun. I was always taught that all conclusions are done at the abstractive level. As well as all the reasoning is done at the level of generalizations. Nobody cares about your personal experience - that is what they've told us in school. You can use it only as example, not as a reason in the argument.
Well... this society cares about each and every individual and they are looking for expression of individualism in everything.
That is so different, but I think that is great. You are not one of the grey mass, you are an individual here. I guess I should say: "I am not one of the grey mass, I AM AN UNIQUE INDIVIDUAL."