Not all Wordpress plugins are developed with mastery or utilize best-practices. Developers of all skill-sets are invited to contribute to the Wordpress community, but not all their creations are ready for prime-time.
When planning to use a Wordpress plug-in for a business, ensure that you test the plug-in first. Yes, by activating some plugins, you can potentially disrupt other functions in your website. One Wordpress web design best practice is to create a back-up, production-version of your website. Install the plug-in in the back-up website first, before trying it on the main website.
Once you've activated the plug-in test your website functions and other tools to ensure that each component is operating correctly. Always back-up your website before making major changes.