Execution can depend a lot on the amount of capital you have available in the first place.

Imagine a startup trying to develop a very expensive solid state LIDAR. They don't have the millions in funds to go to a fab and go into production. They do shitty prototypes. But they get some attention and are able to sell/license their patents. In this alternative universe where patent law is much weaker:

1. The big corp can choose to ignore you and not buy or license the patents. Their defense will be that you are a non-practising entity since you have no revenues or customers. There is a grace period? They make the bet that they can just wait you out.

2. You never patent the idea in the first place. There is no point as there is no way for you to profit from the idea. The world never get access to the tech.