1)
What is the meaning of "Evilim Yalitz Asham"?
1.
Rashi: They sin, and need to pay money to their victims. Their Asham (what they pay for atonement) advocates for them, like the Pelishtim - "Chamishah Techorei Zahav va'Chamishah Achberei Zahav;
2)
What do we learn from "u'Vein Yesharim Ratzon"?
1.
Rashi: Hashem is pleased with them.
2.
Malbim: The heart of a Yashar rejoices and senses that his deeds are pleasing. Ratzon is the Melitz that reveals his intent.