How does being contextual aid you in the application process

Here are some of my stats:
A Levels: Maths, Chemistry, Economics
Predicted: 3 A*s
GCSE’s: 9988888777
for context i go to a high performing grammar school so my gcse’s are like 3 or 4 above average but i am a contextual student(my area is a shithole)

I am planning on applying for Philosophy and Econ or PPE at LSE, Warwick, UCL, KCL and mabye a chiller one which i’m gara to get into like Loughborough or Notts.

I was really just wondering how much being contextual will acc help me in my application process outside of lowering the grade requirement.

Also so u think i would have a higher chance of getting into Philosophy and Econ or PPE at LSE with these grades, thing with PPE is i have a lot better supercurriculars such as semi finalist in the IEA budget challange and a wex with my local MP in parliment on the issue of Violence against women and girls. But im not great at essays and although that can be taught, I felt super capped at 7s at gcse for english like had no hope of getting higher as it has always been somewhere i’ve struggled so worried that passion won’t be enough to carry me to a first class. My personal statement for Philosophy and Econ would feel more like me and have more character cause that’s where my interest lies the most but i’ve been told by my friends it’s too informal of a topic so idk please help