If you use it or have it installed after 30 days without a buying, your company has violated the terms of the license.
1) the company too small to attract a lawsuit, and nobody cares 2) the company does not have decent IT training 3) the company does not have a competent IT department
At the place where I work, we have been told clearly that we are not supposed to install third-party software without approval, and if we did that and specifically used the software in a way that violates ToS, we'll get a serious chat as soon as IT finds out.