http://en.wikipedia.org/wiki/Estoppel
With what you're saying, I'm not sure you do.
Which is why our parents generation made the business decision to enter into a contract with an organization that they were employed with in order to fund, finance, plan and execute their retirements. Knowing that there is safety in numbers, and knowing that you can leverage money better when you have more of it in a pool, they made a business decision, and the rug was pulled out from under them.
That's traditionally referred to as larceny.
You're much more generous than I am. Personally, I take what I can, and give nothing back. I expect my employer to play by the same rules, and it's evident that they will. That's ok, it's not a bad thing as long as we BOTH play by the same rules.
So let me get this straight:
"I will pay you X if you give me Y" is collectivist.
But you're being responsible?
Please.
All you're doing is justifying theft, plain and simple. Call it what it is, and then try to get in on the action yourself, or get to supporting what you're saying. But whatever you do, don't be a hypocrite about this, please. You are much better than that, and there's nothing wrong with saying that you're greedy and that you'd do the same thing as these businesses if you were in their shoes, and that you don't care what the ramifications for these people are. That's the fair and honest thing to say, not to try to run circles around how this is ok when it isn't.
Theft has been happening in lawful society for centuries, and it won't stop anytime soon. Be it through taxation, slavery, or any other number of legitimized institutions such as the fleecing of American pensions, it has happened in the past, and it will continue to happen in the future.
But what I'm saying is that's not ok. Either honor your contracts or don't, but don't try to make excuses about how it's ok because there couldn't have been any rational belief that the contract you signed was too good to be true when it paid out for countless others, but eventually became too expensive.