Saboteurs hurt both your effectiveness and wellbeing in your role as a sales professional:

Hurt recovery from rejection
Saboteurs cause self-doubt and fear after each rejection, making the next rejection more likely. 

Harm buyer trust
The buyer intuitively senses your self-centered anxiety about closing the deal, reducing their trust.

Harm close rate
Saboteurs harm close rates by having you not be fully present with the buyer, not truly listening, and either avoiding or controlling challenging topics.

Harm negotiation
Saboteurs cause you to either give up too much to please the buyer or miss the collaboration to expand the deal size.  
 
Narrow creativity and problem solving
Saboteurs harm your ability to truly collaborate with the buyer, focusing on your planned script and ignoring or fighting unexpected obstacles.

Distort your read of the buyer
Saboteurs jump to false conclusions about the buyers’ character, needs, or intentions:  “they hate this,” “I’m losing them,” “they don’t trust me.”  
   
Heighten stress
Every one of these Saboteur tendencies causes stress, which in turn fuels the Saboteurs even further-- an exhausting vicious cycle.  

Spill Over to Relationship 
These dynamics have a spillover effect on your personal relationships, as these Saboteurs, once activated, spill into your personal life.