Losing credibility with premium hands?

[StLouisMike]

I realize this is a rant but, I have often wondered this. What are the reasons that many feel over compelled to play less than stellar hands against tight players who are running bad with good starting hands? I often see myself losing my whole stack against someone who is reraising me preflop with a very marginal hand after I have lost to a draw out. Example.....reraising a tight epr for all of his stack (50bb) with something like KQ after he has continually shown down big yet losing hands. I know I am frustrated now but, when I "tilt" it is often with exceptional cards that are drawn out on. Please forgive the rant I would just like to find some kind of explanation.

Mike