There's often a signing bonus. If there's a 10% chance of getting the job and a $50k signing bonus is common, then your EV is $5000 per interview.
Even if there weren't, then 10% of the extra compensation vs. an easier-to-hire company with your discount horizon applied would also count as payment.
Even if there weren't, then 10% of the extra compensation vs. an easier-to-hire company with your discount horizon applied would also count as payment.