They can do Superman and not Star Wars because Warner Bros will give their license away to anyone but Disney are very tight with their properties and are content with HT- for the time being at least.
Hell, we might even speculate that Howard fears InArt impressing the mouse and getting ahold of one of his his primary cash-cow licenses, which is why HT are now experimenting with the real hair on Anakin.
I also don’t believe there is any mandate that InArt must exceed HT’s pricing. They simply offer a higher standard of workmanship, with extremely fine tailoring using various micro fibre materials, real leather, magnets, uniquely proportioned bodies etc. even before we get to the rooted hair and diorama options.
Also, HT’s actions since the dawn of InArt would Suggest they are conscious of the potential to lose business to them.
The near immediate change in style of their promotional photography, along with the development of rolling eyes becoming the standard, the seamless arms on Wolverine, the new podium like bases, and even the announcement of certain 2.0 figures such as Bane, who is theorised to exist solely to beat IA to the punch clearly indicates that HT have taken note of the competition and upped their game.
They know the collector community has grown to expect an extremely high standard of figure now and, since HT have conditioned us all to wait at least two years for any degree of gratification as a norm, we are now also willing to wait for the best version of a character from another company, even if HT announce it first. Hence why I don’t care at all about not getting the Anniversary Wonder Woman. IA will make her eventually.