Become 'receipt(bill)-walls(gates)'. Let's imitate imitation.

Above 10 rules 'might have been' used to work for 'moral riches' in immoral-legal world 'but may not be used' to work from now.

Present society is progressing towards moral-legal world.

So only rule being 'sensible complex litigancy' MUST NEED BE USED to work moral riches from now.