Wholesome conduct leads to a greater degree of contentment and joy in the life of one who practices it. This is part of what Buddhism teaches. I think we can all agree that it generally leads to a greater degree of contentment and joy in the lives of others. From an objective point of view the Buddha appears to have acted in a profoundly wholesome way. He appears to have been immensely kind and forgiving to a degree which is nothing short of magical.
Do you feel that what we inherit from the Buddha goes deeper than the oral teaching he left behind?
How do you feel about the effects of the conduct of an enlightened mind as apposed to the wholesome conduct of a mind with limited and afflicted goals?
Does the thought of that a being who is totally liberated from self concern manifesting immensely gracious behavior make you glad?
"Beautifully taught is the Lord's Dhamma, immediately apparent, timeless, of the nature of a personal invitation, progressive, to be attained by the wise, each for himself." Anguttara Nikaya V.332