In my opinion, including people in the end goal does wonders for motivation. Showing people what the end product will be, explaining how it will be impactful, and showing them who it will have the impact on is a great motivation tool. By doing these three things, you give the team a sense of purpose or a “why”. When things become arduous or maybe somewhat mundane, having a strong “why” motivates people to continue to do their best work by putting forth their best effort.