The first people notice when they your website is the business logo. The logo says a lot about your business, hence the need to spend considerable effort, time and resources to create a good first impression with a well-designed business logo. The current business world is such that people are constantly bombarded with so much information online that their attention spans are reducing by the day. Creating a logo that is able to stand out and attract the attention of potential customers is the first step towards gaining a competitive advantage in the market.
It would be pretty absurd and senseless to start building a house by focusing on the interior design, rather than the blueprints. Generating a blueprint for a building or structure ensures that every other step that comes afterwards is successful because everything depends on this.
In a similar way, wireframes are the building blocks for the design of web and/or mobile applications. Trying to ignore wireframes with the intention of saving time may only lead to the entire project failing.