Where I’m from if you’re out on bail or not (and what conditions are attached) is up to the court or the police depending on where you’re currently at in the justice system, you don’t pay anything regardless of your wealth.

I prefer this system as the reasons whether or not someone ought to be bailed don’t really have a lot to do with wealth usually so it seems unfair to make it a factor, but I can certainly see the reasoning to put a number on it as I suspect it does dissuade people breaking their bail conditions.