Carcharodon megalodon, or 'Big Tooth', an ancestor of today's Great White Shark, may have grown to 16 metres and weighed 100 tonnes, generating between 10.8 to 18.2 tonnes of bite force.- between 3 and 6 times that of the T-Rex. Still the T-Rex probably got better traction, and kept clear of sharks. The largest modern Great Whites have about 1.8 tonnes, An African Lion 560 kg, and we can manage about 80kg (Great for biting apples, or cracking walnuts or teeth)
We have still managed to become the world's most efficient predator artificially.
We can wipe something out just because we don't like the way it looks at us.