I wish the GMO developers had initially focused on products which were end-user or publicly beneficial like this, vs. just raising yields or reducing pesticide use (which are end user and societally beneficial, but can be cast by opponents as economic arguments). Without the existing anti-GMO movement, GMO would have a much easier time getting adoption in cases where it's essentially unambiguously a win (like this on…
The very first commercial application of GMOs was recombinant insulin for diabetics. Followed by a slew of other drugs - GMOs now make 50% of drugs (all the protein ones). The agriculture applications came 5-10 years later as plants were harder to engineer than microbes.
Glargine is one of the key recombinant products out there.