Also fingerprints will only stop the lowest level of attackers. You can easily change binaries in a way the fingerprint is changed but the functionality remains the same. Reorder functions, add some garbage data, etc.
The biggest advantage is that it would allow orgs to audit all applications that have been fingerprinted within their org and see if they might have been attacked as well.
Some of the fingerprints are easily gotten around by fudging the binaries a bit. Others, like snort rules, look at things like network traffic that might not always be so easily disguised.
I guess one benefit might be to push the development of new detection techniques to detect the underlying implementation of these tools.