Menes was speaking from experience when he advised Alexander regarding the distribution of the rewards.
The propensity for the infantry grunts to cause trouble and raise issues out of something that was not even worth considering was really something that needed to be seen to be believed.
And hearing this quickly also reminded Alexander of how he used to divide any obtained loot. The shares were certainly not equal.
Now back then, Alexander did that based on contributions- the infantry did the fighting while the slaves and servants stayed at camp, so natually the former got more, with the higher position in the ranks getting more rewards as they were responsible for more things.
However this gift was just that- a gift. Alexander could give any amount to anyone he wished.
So he did not think to divide it like that.
But now Menes was saying to do exactly that- because the men would not care how much they got, they would get how much 'more' they got.
