Dying for corporate interests?

A significant percentage of the American soldiers who have died or been seriously injured in Iraq, as well as those of other countries, have done so at the hands of rocket propelled grenades (RPGs). Israel has developed a system that would seem to offer soldiers protection against these weapons but the Army doesn't want to use it saying that it isn't combat ready and preferring to wait for its own system that is being developed at a cost of seventy million USD by Raytheon. Tests conducted by the Pentagon on the "Trophy" have indicated that it is more than 98% effective.

One wonders why, or doesn't wonder why, as the case may be.