Apple doesn't give a f$ck about pure market share, they care about selling to influencers and profit. They dominate Samsung in both areas.
Oh yes, Apple doesn't care about marketshare. Providers of such a widespread gadget such as whatever uses a 3.5" jack? They do care. If you produce headphones, and the company with 22% of the marketshare (and increasing) and the other one with 15% go to two different standards, which one would you follow ? This without even considering that Samsung would probably go to an open standard so that all the other companies (another 50% of the marketshare) can adapt it.
"The industry" has followed Apple multiple times before, and it will here as well.
And "The industry" hasn't followed Apple multiple other times before.