It feels like Towers are just larger minions that give more gold...
So many times I've seen games where a jungler will make a gank at about 4-5 minutes on bot turret with a mid laner and take the turret before the 6 minute mark.
Towers are not supposed to ever be taken that early. Towers were never supposed to be taken so early. They're supposed to be your safety net. If you go for a tower dive, it's supposed to be an extremely risky play with a high payoff. If you screw it up, they get free gold. But the problem is, so many times I'll see a two man dive as early as 5 minutes, with the tower hardly being that point of safety that it's supposed to be.
Towers are supposed to take a team to take out. Ether super hard push with 4 or even 5 people to take it, or waves upon waves of pushed minions. Nowadays I simply see 1 or 2 people swiping towers as easy as ever!
I'm not 100% sure how to help make towers better, but something needs to be done. A 4 minute tower used to be an extremely rare thing. Now it's something of the ordinary now.