Just throwing in a comment here...
I've heard the argument many times that a central database would be too difficult to maintain, it would be impossible to track events all the time, one person would have to maintain everything, etc.
As someone that's seen a national organization with more than 65,000 members, 1,000 volunteers and 165 chapters accurately and easily (with occasional problems, but nothing is perfect) track events, experience and recognition, awards, etc... I can attest that it's definitely possible to do. It's maintained both centrally and locally and can integrate everyone together to make sure the standardized system is really standard.
There may be other arguments (in fact, I'm sure there are) against centralizing the data - but in terms of possibility, this is certainly something that *can* be put into place if the desire exists.