What are the odds to make big cash at the slot machine? 1:1,000,000? Probably less. In GT7, each roulette ticket has only 5 prizes, one of which you are guaranteed to get, so there should be a very high probability you will win something worthwhile. However, because the chances in GT7 to win big would be so high, PD had to rig the game so that low-star tickets will nearly always land on the low-cash prize. Low-star tickets secretly, but deliberately favor low-cash prizes. Yet, all five prizes appear to have the same winning chance.
Thus, I suggested something like this: say you open a 3-star ticket and the game aims to reward you with 10,000 cr. Then the game should show four times the 10,000 cr prize and say one time 50,000. At first glance, the player would see that the maximum possible payout for this ticket would be 50,000 cr, which makes sense because it is only a 3-star ticket. And the chance on landing that is only 20%, while there is an 80% chance of winning 10,000 cr. That would be more just and more understandable, instead of shoving big prizes into low-star tickets and then rigging the game to give you the one low-cash prize.