The Pigg Tribe they encountered was directly integrated into their own tribe, with a strong momentum to unify the Pigg Clan.
Being a "traitor" is also not easy. As more and more orcs defect, these "elders" who switched sides earlier have to prove themselves to secure their positions.
To win a fertile pasture after the war, Glaem decisively chose to use other orc brethren to boost his achievements.
The low combat effectiveness of the Pigg Army is not an issue. If the quality is lacking, then make up for it with quantity.
Relying on the tactic of bullying the few with the many, Glaem has recently been victorious in battle after battle.
Compared to his peers, his battle achievements have consistently been at the top.
It's not that the other orcs aren't working hard, it's mainly because the identity of the Piggs offers a natural disguise, so other tribes don't guard against them at all.
