The main benefits of applying for a trademark as a business are practical rather than legal.
Firstly, a business-owned trademark is used by the entity that holds it, which makes it simpler to maintain the registration in jurisdictions where commercial activity is required (like the US).
Secondly, it makes enforcement more straightforward, since the entity enforcing the trademark is the same one that owns it and uses it.
Lastly, in the event that you sell the company or trademark, the ownership transfer of the mark is simpler because the trademark transfers as part of the company's assets without a separate assignment. It also makes it easier to license the trademark to subsidiaries or partners.