Where the knights templar bad people?

No, they were not. Their portrayal in "Kingdom of Heaven" was highly inaccurate. For example: Renauld De Chatillion was NOT a Templar. Guy De Lusignan was not a Templar.

The Knights, Chaplains and Sergeants were monks. They spent their days training for war, maintaining their equipment and praying. They lived in Cloisters and were subject to hundreds of rules. One of which was they could only hunt lions. And they had to sleep fully clothed. Also, they could not embrace women, including their family members. They were prohibited from idle talk.

The rules were strictly enforced. There are records indicating that knights were made to eat off the floor like dogs for minor rule violations.

So, in short, they were very dedicated people who surrendered their lives in service to God. Their goal was to protect the Christians who were under constant attack from Muslims and pagans.