IF there is a cap on max cash one "ought" to have, THEN cash level "ought" not to influence the score.
the cash is for players to play with.
to loan out, to brag about, to take away from someone else, to buy commodities, shares or weapons and ammunition, which then can be traded further, stored, consumed or destroyed ~ played with.
i suspect this ability of cash many find as fun, as integral part of the game.
it was argued, by the GM, in past that this exact aspect of cash is not desired. its not desired for player to play around with THEIR cash, allegedly because it gives them too much power for influencing the world market for example.
such reasoning is ill, as it matters not if one plays with chunks of cash in several steps, in several exchanges for/from Gold coins, or if one has such cash available at all times. the end result will be the same, just with lower cash allowances the whole procedure will be more bother.
personally i find it insane that on one hand the GM sells me in-game cash for real cash, then tries to prevent me to play around with it.