This was a resolute ghost, Ben noticed as he fought to reclaim his body. He had made a terrible mistake, he had been so relaxed around Jasper forgetting that ghosts were not limited by mass and could go through anywhere.
For a moment there, he had forgotten his body was the most wanted treasure in the ghost realm. Unlike those weak humans, possessing his body would give that lucky ghost a lasting form as long as Ben lived.
This was why the man had always been vigilant every time of the day, protecting his body and soul from those devourers like it was a rare artifact. He knew Wiwi would have done the same if he wasn't strict with her.
Call him selfish for not jumping headfirst into helping the ghosts, but they were dead, he was alive - he had a bright future ahead. Moreover, he was a public figure whose actions were closely scrutinized.