Yes, it is good to have these certificates, because as you Digital marketing is constantly changing field and that's why learning about all the updated tactics will help you. they will set you apart from those who don't have them.
Google Analytics empowers you with measurement & analysis of your ad performance. These are two complementary skills. I can't imagine doing Adwords without having deep knowledge of Analytics, but if you're not looking to run ads, then there's no needs to do an Adwords certification.