Jungle Xp worth something/Towers

Lately every lane has that one lane that is getting ganked 3 - 4 man under tower, with no counterplay at all. I feel like turrets should do X more dmg when more than 1 enemy is underneath it. Also junglers can just camp 1 lane with little to no xp loss because of how forgiving the jungle is, this gives laners who are behind no chance to recover esp with the removal of green wards, this also needs to be adjusted so laners can somewhat comeback if behind.