Final answer:
Desdemona's commitment to assisting Cassio in Othello showcases her innocence and loyalty, as she acts out of a sincere desire to help and uphold her commitments.
Step-by-step explanation:
The highlight of Desdemona's devotion to helping Cassio primarily shows her innocence and loyalty. Desdemona is characterized by her kind-hearted nature and willingness to support those around her, attributes that align with a sense of innocence and loyalty rather than naivety, intelligence, or selfishness. Her actions are driven by her genuine desire to help Cassio, a reflection of her loyalty to Othello's comrades and her commitment to doing what she believes is right.