There's a big difference in difficulty between crossbreeding plants to get a bigger banana and genetically engineering rice to prevent vitamin A deficiencies.
It's funny you should mention genetically engineering rice to prevent vitamin A deficiencies. That was actually done by university researchers using an EU-funded grant, the terms of which required them to patent it and give exclusive patent rights to a private-sector company. Said company (one of the big agrobusinesses) decided it wasn't commercially viable and shelved it - but they didn't want anyone else making money from it either, so now it's basically useless until the patent expires. They granted a license for "humanitarian use" but it's so narrow as to be almost worthless except as a PR tool to accuse anti-GM activists of wanting third world malnutrition. (Very few of the countries allowed to grow it can actually grow rice, and it forbids import or export.)
To be honest the whole thing was ill-conceived on every level anyway, but corporations and patent law alone were enough to doom it.
Well, if you keep on refining it to maintain that elitist view, why not add "on a Tuesday, done by a Saggitarius who drives a Volvo"? "Getting a bigger banana" also takes years of iteration, effort, and failures.
So now that you're saying that patents should only be for difficult things that takes years of education to do, why did you bother to talk about copyright above? You can write trash and it's covered by copyright. Plenty of trash is covered by copyright, stuff that didn't require education, discipline, or talent.
Copyright and patents are meant to protect novel things; how difficult they are to achieve is not really relevant, so sneering at 'that's just a bigger banana' is just elitism.