Let me know if the ABC example didn't get the job done. The core insight is to understand that it doesn't matter how high the result is. 51% wins just as well as 85%. So how much you win by is irrelevant.
No, that's fine. Actually I had initially read it as equivalent shareholding giving different control, which was what my query was based on. I then realised the opposite was relayed in the graph, so reversed the position, without realising that this nullified my query. Thanks for your response though.