Why do historically Black GLOs use corporate designators?

[Ronaldo9]

I notice many historically Black GLOs are fastidious about including the corporate designator "Inc." as part of their name while other GLOs are not.

For instance, Sigma Gamma Rho - on its website - only refers to itself as "Sigma Gamma Rho Sorority, Inc." and never refers to itself as "Sigma Gamma Rho." This seems to be typical of Black GLOs.

Either use, of course, are probably correct. In the case of Sigma Gamma Rho, the North Carolina General Statutes indicate that the designator must be part of a corporation's official name while also not precluding the use of a shortened version in everyday communications. [e.g. Lowe's, the home improvement store, is officially Lowe's Companies, Inc., but DBA Lowe's]

Is there any significance to the fastidious use of corporate designators in the names of Black GLOs? Is the corporate designator "Incorporated" orally invoked during ritual work even?