Just because you do not take an interest in Social Media doesn't mean Social Media won't take an interest in you. There are people leaving reviews of your products, complaining, asking questions. You might not see all that but your potential customers and your potential employees will. That's because they will Google your company (or the product category) before buying or going for an interview. Research shows that 80% of people do that.
It is common advice to be on Facebook, Twitter, LinkedIn, Google +, and any popular local social network.
If your product is visually appealing, consider Instagram and Pinterest.
A boosted post is a post to your Paige's timeline that is that you can apply money to in order to boost it to an audience of your choosing. This is the simplest way to advertise on Facebook. Boosted posts differ from Facebook ads because they are not created in Ads Manager and don't have all of the same customization features.