Because I was taught Jesus was the Son of God (like I said we all are) and was God's representative on earth. NOT "God on Earth" - simply a representative and as such trying to lead people in the right ways of living.

I'm sure we can find a few good men/women in this day and age who have tried to do the same. Probably they have also said they were acting in 'the name of God' - but in reality it's just a good person attempting to stem wrong doing amongst society.