Physics does not work that way, you insolent fool!
Regardless of Klingon muscles, the fact that the blade sticks out sideways from the handle creates a lever arm that tends to make it droop due to gravity whenever it's held horizontally. Even if Klingon hands are different, they're not that different that it's somehow advantageous to keep torquing upwards so the blade points at the opponent instead of the floor.
...to the point that they somehow got away with giving Quark, of all characters, the moral high ground when criticizing human history.
Honestly, your "the most stable and ethical expression of capitalism" thesis has made me realize just how right Quark was. With humanity, the wealth gained through unchecked capitalism inevitably gets parleyed into political power that destroys the free market that enabled it in the first place. For Ferengi society to be stable, that dictatorial tendency would have to be absent, which means they really are better.
Obviously, Ms. Frizzle is a Q.
Be honest: you just wanted an excuse to post that reference, didn't you?