So ironically enough, she's already laid the groundwork for channeling for profit to become acceptable. I say ironically because I can't imagine Egwene herself would approve of Aes Sedai and the One Power being demeaned to the level of "mere" craftsmanship. In medieval societies such people weren't all that respected, after all, and it took until late in the industrial age for engineers to rise to prominence and respectability.

And more than anything that will likely be her most vital legacy, considering the dramatic impact widespread channeling and devices would have. It'll be the Age of Legends all over again, only without the opening of the Bore to bring it all crashing down.