A cellphone company wants to erect a cell tower on my school. Will it be permissible for me to take an amount from them as rent for this, when people, along with being able to access religious and political information from the internet, will also use it to access pornographic content?
It will be permissible for the questioner to take an amount from the cellphone company as rent in exchange for them erecting their cell tower on his school. However, the sin for misusing the internet will be upon those who have misused it, and not upon the questioner.
And Allah knows best.