Basically you'd have to modernize an existing name to your purpose.
*(F) = Female
*(M) = Male
Hesiod, Theogony 211ff (trans. Evelyn White; Greek epic 8th or 7th century B.C.):
And Nyx (F)(Night) bare hateful Moros (M)(Doom) and black Ker (F)(Violent Death) and Thanatos (M)(Death), and she bare Hypnos (M)(Sleep) and the tribe of Oneiroi(M)(Dreams). And ...
Best two-edged name I can think of is IEZABEL (Ἰεζάβελ): Greek form of Hebrew Iyzebel ("Ba'al exalts," "unchaste," or "without cohabitation"), but meaning "chaste, intact.". Modern-day form would be Isabelle.
CALLIDORA, composed of kallos "beauty" and doron "gift"
EUDORA, eu "good" and doron "gift"
ISIDORA, "gift of Isis"
RHEBEKKA, Greek ...
Because she wanted to help him. She just felt she had to intervene to make sure he was okay. She had compassion towards him and didn't want him to die so therefor she saved his life so she did not feel helpless.
To answer your first question yes, Hermes was (among other things) a god of thievery.
An excerpt from the Hermes Theoi page
HERMES was the Olympian god of herds and flocks, travellers and hospitality, roads and trade, thievery and cunning, heralds and diplomacy, language and writing, athletic contests and gymnasiums, astronomy and astrology. He was the ...