It would be possible, but probably unpopular, to remove the cap on contributions while retaining the current cap on benefits. This would make the system an even more progressive tax than it already is. Personally I would be in favor of this. But to be fair it wouldn't affect me in the slightest either way.
I laugh a little inside whenever I hear someone talk about means testing based on income. Income tells you *nothing* about how well off someone is financially.
That kid fresh out of college working that unpaid intern position? His parents paid for his college tuition outright and are currently paying his rent for him. He puts all his daily expenses on dad's credit card too. But he's got no income and he's not claimed as a dependent on his parent's taxes so we'd better qualify him for all the means tested programs. Great use of tax payer money right there going through everyone's tax returns to make sure they need those means tested programs.
There are *far* more people like this out there than most people realize.