Are you sure they attempted to sabotage you because they were threatened by your looks and not some other reason?
I would say, it's better to accept that these biases exist, so that you can take them into account when reasoning - rather than trying to delude yourself into thinking you are in entire control of all that is going on in your mind (and body).
the same thing happens to good looking white guys and good looking women (around other women) too.
you've never heard the term 'prettyboy'? it's used all the time to put down good looking men.