The Flight 77 Memorial at the Pentagon is appropriate, but most of the people who work at the Pentagon know what happened on 9/11. They don't need a memorial to remember. The government should have raised $22 million for the memorial. Charities could have given the money raised to victims' families so they can feel better about the loss of their loved ones.
No, the money that was raised for the Pentagon Memorial should not have been given to the victim's families, because the families of the victims were already compensated by government funds. Also, the people who gave the money for the memorial thought that they were giving the money to a specific purpose, a memorial. It would be unfair and a bait and switch to use the money for any other purpose.
I do not think the money from the charity that went to the Pentagon Memorial should go to the victim's families in other ways as long as it was clear to all who donated where the money was being used. If they advertised it as aiding victim's families then yes it should have been used differently.
The charity can spend the money the way they want and the way that they believe best memorializes their loved ones who died. People get to wrapped up on 'who should have gotten the money' without realizing that its not about them, but instead about what the loved ones need.
While I think this would have been an awesome sentiment and truly helped out the victims' families, I do not think that it would have been possible to implement. It would have been nearly impossible to get charity money into a pool, then somehow find an easy way to divvy it out to each victim. The logistics jsut aren not there.