That's a great way to put it. With C you can build a car. With Lisp you can build a better car but it's also very tempting to build a car factory, and a motor factory to supply that, and an iron ore mine to supply the motor factory, and just for grins let's go ahead and reinvent physics in a way that suits our purposes and hey, faster-than-light spaceships are probably a good idea too so let's build those, and pretty soon you've completely forgotten about the car.

Lisp: With great power comes great responsibility.