Jesus said it is our duty to try and become like Him. We have the capacity to be like Him or close to Him, but do we really want to or are we more inclined to living in accord with the various sensualities of existence?
1. The man who could become fit instead eats cake and chooses a slovenly existence.
2. The woman that could be a great business owner but instead stays in her position because she fears going out on her own.
3. The boy that could become a great scientist but instead chooses to not study and focus on the trivial matters of existence.
Jesus showed people what they could be, most will not walk that path. Just like most won't even do any of the above. They resign themselves to mediocrity when they have the capacity to be great.