HERA is a very jealous person but, she had every right to be. Her husband, Zeus, who is known to be "addicted" to sex and pleasure, would cheat on her with hundreds and thousands of mortal maiden. How can you deem a jealous one to be fair or equal in any aspect?
It is contradicting to say that "Hera is considered to be fair nor equal whenever she goes into battle." She is a jealous, cunning and manipulative goddess. To lure Zeus out of the Trojan war, she called on to her children to give her their powers. Of course, it is not easy because her children are Zeus' children, too. In order to to get what she wants, she made up stories that her children cannot refuse. For instance, to put Zeus into her bed and out of the Trojan war, she would need love and beauty. She approached Aphrodite to give her the power saying that the couple Oceanos and Thetis who brought her up are separated in bed and in board. To repay their kindness, she would persuade them and bring them together, using Aphrodite's power. With this in mind, Aphrodite readily agreed and gave her mother some power of love. She successfully lured Zeus into her bed and made him sleep. Due this, without their protector, Zeus, the Trojan lost the war to the Achaeans. Now, is that what you call "fair/equal" in battle?
