I think the best analogy is to cybersecurity. What’s the point of patching devices when they’re inevitably going to be hacked again in the future? Because they’ll also be patched again afterwards. Security is a dynamic equilibrium, not a static one. Similarly, no fix to corrupt corporate power is permanent. We need constant vigilance.
Also, it’s been a hundred years, and tech is a new sector that didn’t exist 100 years ago. Breaking up Standard Oil isn’t going to help with Apple and Google.