"He has no self-interest to serve.

If you wait to consult with others, they'll only advise you in a way that will best serve their interests, not yours.
Don't you think I'm right ?" Britz asked Fanwell.
"Yes," came the quick reply.
"What do you think of it ?" the detective asked Cooper.
"I'm an old friend of George," he answered.

"I should advise him to clear himself at once." It did not occur to Collins that these three men were playing the same game; that they were ranked in coalition against him.

But before his mind there hovered perpetually a vague presentiment of danger, that made him mistrust his own impulse to yield to their urging.
"I can't do it!" he exclaimed despondently.

"You wouldn't understand--and you wouldn't believe me." "If your story is true it ought to be easy enough to furnish proof of it," retorted Britz.
The pitiless baiting to which Collins was being subjected was beginning to tell on him.