[emb021]

I think part of the answer to this is on the make up or character of various GLOs. Sort of the similiar theme that's come up here as to which groups are 'real greeks' as opposed to being in a group that has greek-letters for their name (and the big mistake that too many make is that only the general/social GLOs are the 'real greeks').

When we speak of GLOs (and I include those GLOs that don't have greek-letter names, like Farmhouse etc), we are speaking of a wide range of different groups:

* general/social GLOs (your various NIC, NPC, NPHC, and such fraternities and sororities)
* service GLOs (basically APO, GSS, and OPA)
* professional GLOs
* honor GLOs

Is a particular GLOs just a group with a greek-letter name, or do they use fraternalism to bring their members together into a strong brotherhood/sisterhood? Not all do. At a minimum, such groups have an induction ceremony, but those that use fraternalism usually have a pledge program (a new member training program to educate the soon to be members on principles, history, traditions, etc of the group) that helps instill the principles of the group as well as all the rest.

Obviously the general/social GLOs do that. The service GLOs also do this. I don't know about the professional GLOs. The honor GLOs don't do this.

Thus, being in GLOs that are fraternal, will create the loyalty to the group that leads you to wear your letters and insignia.