Walker kept the others who wished to travel to the more unique elemental planes to the side. He even looked at Onyx, Midnight, and the other attendants trusted with this matter with some worry.
He knew that they had spent a lot of effort to find those who would be able to travel to the elemental planes safely and with the right mentality.
It wasn't wrong for some to feel that they could go to the elemental planes for entirely personal gain. There were some who had the goals to be able to find their own strength, that was fair, they could grow while they also learned. But it was those that only focused on those who were the issues.
Some wished to be able to find items, plants, herbs, monsters, and various other aspects of them to take entirely by themselves back to Genesis not for them to be able to share with the people, but for them to profit on or to further strengthen them. This mentality was not the ideal that the leaders of Genesis wished to be seen as a role model.