The world is mobile today. Most people are searching on Google using a mobile device. The desktop version of a site might be difficult to view and use on a mobile device. As a result, having a mobile ready site is critical to your online presence. In fact, starting in late 2016, Google has begun experiments to primarily use the mobile version of a site's content42 for ranking, parsing structured data, and generating snippets.
Ever heard of Maslow's hierarchy of needs? It's a theory of psychology that prioritizes the most fundamental human needs (like air, water, and physical safety) over more advanced needs (like esteem and social belonging). The theory is that you can't achieve the needs at the top without ensuring the more fundamental needs are met first. Love doesn't matter if you don't have food.
Quora is a website where users generate the content entirely. They post questions via threads and other users answer them. It’s basically a yahoo answers type social network that works like an internet forum. Both threads and answers can receive “upvotes” which signify the answer was worthy and popular. The answers with the most upvotes are put at the thread’s top.
This is not to say that small businesses can’t show within the top organic results. If your business is located in a less competitive market or industry, like a nail salon in a small town, you have a better chance of ranking high in organic results. Most small businesses find it easiest to rank within local results, though small businesses can also rank high in organic results by investing in search engine optimization efforts.