Headcanon/theory that the Steltian hierarchy is designed directly after the Skrall caste system. You have your ‘regular’ people, then the large brutes, and then the even larger giants of immense power...
But while the Skrall ordered themselves with the largest at the top, the Steltians did the reverse. This may have been deliberately programmed by the Great Beings as a way to test if the concept of a Skrall caste system could still work, it just needed to be re-ordered a bit... The antics of those such as Sidorak, Krekka, and Gladiator proved otherwise.
Even if there were three layers to each system, it seems the way that power was consolidated was different; While the middle caste of the Skrall were more intelligent and highly regarded, closer to the upper levels as commanders, the Bruisers of Stelt were conversely closer to the slaves, being dimwitted muscle.
This may have been encouraged by the nobles, who emphasized their own intelligence to make up for their relative weakness and didn’t want the giants and bruisers rising up against them, having far more musculature strength between them. For the Skrall, the giants would of course elevate this type of strength instead, as it was a legitimizer of their power, and thus the Special Forces could share in it.
The Great Beings were fascinated to see how this reversal of the top and bottom castes still drastically affected the brute caste, which stayed between them both but nevertheless experienced a shift in overall status accordingly. Some Great Beings wonder if perhaps the next simulation should place the ‘brute’ caste in charge... Or at the very bottom. Others are telling them to give it a rest.