Patents, just like capitalism, aren't bad by themselves, but if left in the hands of powerful people/entities who can abuse and extend them at will for profits

Patents, just like capitalism, aren't bad by themselves, but if left in the hands of powerful people/entities who can abuse and extend them at will for profits they become dangerous and cancerous, just like capitalism. The solution is probably in some form of strict control that prevents their abuse; very hard to realize if those abusing patents are the same people who dictate rules, or very close to them.