Intellectual property rights law can be an important tool in feeding people and helping them in other ways as well. If there is less new development without seed rights laws, there are fewer new breeds and potentially poorer development for the whole of mankind.

There is a balance to reach, and I think e.g. Monsanto has reached out quite nicely. For instance, both by law and contract, subsistence farmers may use even licensed breeds. You don't have to pay licenses to grow your own food. You only have to pay if you are utilizing the IPR commercially.

Same is with medicine: new medicines help curing people of diseases.

Your argument resembles a requirement for farmers to work for free because everyone needs food so it's wrong to charge money for it.