I cannot think of anyone more deserving of having Tilly unleashed upon them than mobile-phone companies, so I'm down with her plan.
Otoh, I cannot think of many entities it'd be more dangerous to let Tilly demonstrate her 'abilities' to - so while I agree with the sentiment, I'm not quite sanguine about risk of their hiring Tilly on the spot, so she can then bless every of their clients with her 'skills'.
In a way, Tilly reminds me a bit of the character of Martin Blank in
Grosse Point Blank - all-round likeable good guy whose 'flexible sense of individual ethics' had him ending up in a career as a CIA-hitman. I don't think that Tilly is
bad in the moral sense so much as
"worryingly flexible" in what she considers ethical priorities.
She certainly has a long way to go before she's an Alfred - who acted as moral compass to the often times 'less ethically troubled' Bruce Wayne.