When Avery thinks that no one can be “worthy” of the billions Tobias gave her, she is suggesting that the Hawthorne Foundation, though well-intentioned, is in some sense an illicit enterprise: neither the Hawthornes nor Avery
deserves to have the power to change the world unilaterally merely just because they’re massively rich. Yet when she asks Grayson “how” to be worthy, he argues that worthiness entails an efficiency- and outcome-focused approach to charitable giving. That is, he believes a certain giving methodology can make someone worthy of immense power—without addressing the question of whether a single person should have that much power in the first place. Here, Avery consciously acknowledges her attraction to Grayson due to their similar logical and data-focused thought processes, hinting at a future love triangle between her, Grayson, and Jameson, to whom she is also attracted.