Learning and development means that you will be able to broaden your knowledge and skills in that particular aspect of your job role. This will improve your marketability in your job, meaning more people will recognize your company. This also helps you to understand your job role better and to open up possible places for future promotions. When learning new skills, you could realise that you are now able to do a job you used to think was impossible to complete.
In completing a job it increases your value to your employer and helps provide that you keep your job and hopefully advance with the company that you are working for, also meaning more career offers, as people around different companys may recognize you, meaning that they like the way your work and could potentially ask to employee you. It can benefit work as well the employee is better qualified and should have a better understanding of their job role.