Gods and goddesses appear to play relatively similar roles in the Iliad and interfere with approximately the same regularity in the lives of mortals. The three most powerful gods in the Greek pantheon are male – Zeus, Poseidon, and Hades – and Zeus is a king of the gods and thus has some power over the others. However, even Zeus himself cannot overturn the decrees of the Fates, who are female.
Hera acts mainly through attempting to persuade Zeus but her role in the pantheon is one connected with childbearing. Athena and Artemis, both virgin goddesses, intervene directly, as does Aphrodite. When Zeus tells Aphrodite to stay out of the war, it is because she is a love, not a war goddess.
Goddess and gods all have specific powers and spheres of influence. Ares is a war god, and Artemis the goddess of hunting, for example. All deities involved in childbearing are female, but otherwise their roles afre not rigidly distributed by gender.