In the goals tab, the ratio of dollar value vs points is still taken as 10 points == $1.
While this might be true for paid customers, it isn't in case of the people on free plan (majority).
Maybe a better implementation would be to check the user type and accordingly display the point to money ratio ? For example, if the user is paying, it should automatically show "Redeem 50 points for $5" and if it's a non paying user, it should show "Redeem 100 points for $5" and so on.