No laptop would offer me as much performance for 500 euro, at least not where I live.
I am aiming to use it for Software Development (Visual Studio, etc.) so this is true for me, although for that I could get a really cheap card.
Since the integrated one is fine for me though, what's the point on spending more just to have a dedicated one?
BTW, does LoL count as relevant when choosing PC components? That's literally the only game I play in my little free time.