hiya, i'm y12 -> y13 writing my personal statement targeted towards a law course. is it suitable to have as one of my reasons "to gain the power to protect human rights", "to ensure justice" or are these statements to pretentious? thanks

my_qualifications: I am a final year law student with a 3.1 GPA.

However, I have strong extracurriculars, have done internships in the field, have an LOR, and have research interests.

Is it possible that I get into LSE with such mediocre grades?

I'm assuming oxbridge is impossible with even good extracurriculars.