In Act 3 of Pygmalion, Pickering and Higgins besiege Mrs. Higgins with Eliza's abilities. What does their behavior indicate about them?

Higgins and Pickering, trying to outdo one another in
praising Eliza in front of Mrs. Higgins prove their childish excitement about Eliza and
the experiment and at the same time, unknowingly reveal their insensitivity towards the
innocent, simple girl. It's as if they have forgotten that Eliza is a living being and
not a toy. They are both so excited about passing her off as a duchess that they appear
entirely unmindful of her future, not considering even for a moment as to what happens
to her after the experiment is over, not even when Mrs. Higgins reminds
them.