I think I would have given this series a try if the guy just kinda dismissed MC by simply saying that dragons are dumb or saying MC cares too much about a random animal, instead of calling it a tool and completely neglecting it. Humans naturally come to love any animal that they are around and it's almost instinctive to humanize them, even if we don't always treat them as equals we still come to care about them, so by having that random guy completely dismiss the living breathing creature that helps him make a living sets the tone this story is going to be another run of the mill "Only I am moral and know the truth in this backwords world, so I will be it's savior and civilize them" type story.