Reliever Strategy - 80s Gossage vs Mitch Williams

Hi. Why is mystery card 80's Mitch Williams 3.73 salary more expensive then Gossage 2.80 salary? I dont understand it, I look at the cards, I see the stats on Baseball Reference, what am I missing? Goose is obviously the superior pitcher. Is it a lefty right thing?

I'll copy this to the decades forum.