As Christ allowed Himself to be arrested, questioned and crucified. Being gentle is not the same as being patient. Sinners might be gently left to their own ways - reaping eternal damnation. Christ gently left His disciples at the garden and went to the cross. Christ thinks not.
Scriptures does teach the consumption of the earth, and a new heaven, new earth, new Jerusalem.
The message is that you can be victorious right here in this earth and gain support, alliegiance, wealth, respect without being hard on others and playing rough. Being gentle may bring your friends and enemies closer to you for loving relationship and interaction. Being gentle cause less hatred and hurt.