Angel lacks the qualifications to represent the Barbarian Cave in a cooperation with the Wise Sovereign. Even if he had the qualifications, he would still be cautious. Naraku City, the Naraku Incident, the person Naraku, and all the experiments made with the Snake Coil Cone here, all indicate that the waters here run deep, and one must tread carefully.
Given the current predicament of the Barbarian Cave, facing threats from both Eternal Night City and Xinnai Land, coupled with handling the arrival of Peach Heart Theater, from Lord Reine's perspective, it's very likely he would reject the Wise Sovereign.
Naraku City holds secrets and interests. However, Naraku City has not risen for ten thousand years; any benefits are remnants of the past.
The crises faced by the Barbarian Cave also involve benefits, but these are tangible benefits. So, Angel has a clear understanding of the choices.
