there wasn't a medical reason - if I remember correctly, the doctor said that if it wasn't causing any medical issues then there was no need to fix it.

I've had other NHS experiences that make this not particularly surprising.

This is typical in the US as well. Last year my girlfriend broke her nose and they said they just let it heal nowadays because it'll probably be fine on its own and they can deal with it later on the off chance it heals improperly.