why do rapists rape? - sex or power?

https://emmatheemo.wordpress.com/2012/12/20/why-do-rapists-rape-for-power-or-sex-lets-ask-a-rapist/

6)2,8% used rape as punishment.

Revenge.

19)” She was wearing my clothes, and I was very angry with that. I took matters into my own hands and wanted to teach her a lesson.”

Hmm, power, perhaps?

20)” I wanted her to become my wife. I sent my friends to go and entice her (the woman) to come to my place. They brought her to my house.”

Sex with a touch of power.

17) “She let me in the house and let me kiss and caress her, but she was not for sex. This was a challenge to my manhood, and I forced her to have sex with me.”