No.
But I have another thought experiment. It's based on a theory of mine about hardness.
Scenario One: you have to put a hit on a telegraph pole as hard as you can. Go do it. How hard did you hit it? What if I gave you a really good motivational speech? What if I said I'd give you a million dollars if you could hit it a bit harder? I reckon you can hit it just a little bit harder, but waay off 100% because of the knowledge of the broken bones you will receive if you do.
Scenario Two: I am God. I have just given you the power of invulnerablity. No matter how hard you hit that telegraph pole - no matter how hard - I promise you will not break anything, in fact, it will feel like hitting a nice thick tackle bag. Now, go do it.
In scenario two, you hit that telegraph pole a LOT harder than in any version of scenario one. Imagine it - no matter what the motivation, you still pull back on contact knowing that you're going to fuck yourself up pretty badly. It's a core self-preservation instinct. In scenario two, you nail that motherfucker. You bring it.
Conclusion: the hardest hitters in the game are those who break the least easily. Because they don't pull back from contact at all. E.g., Bakkies Botha. The next hardest hitters in the game are those who can live with the fact that they are very likely to get injured in the next contact. E.g., Stirling Mortlock.