General reference works on the Ancient and Accepted Scottish Rite consistently publish the fact that each jurisdiction caps how many members may hold Inspector General Honorary at a given time, a limit that distinguishes this single honorary degree from the twenty nine numbered degrees beneath it, none of which carries a comparable published cap on membership.
That the thirty third is bestowed for distinguished Masonic service rather than earned through petition is itself widely published information, appearing in general encyclopedic treatments of the Rite alongside the more detailed, jurisdiction specific criteria that vary from one Scottish Rite governing body to another.
Because it sits outside the ordinary petition system entirely, Inspector General Honorary is discussed in published Masonic reference literature primarily in structural terms, its position above the thirty second degree and its capped, honorary character, rather than in terms of any distinct ceremonial symbolism of its own beyond what the Consistory's other degrees already establish.
General accounts of the Scottish Rite present this honorary, capped design as a deliberate check on the Rite's own top rank, a documented governance choice rather than an incidental feature of how the thirty third degree came to be structured.