Thanks for reaching out. Great to hear that you are promoting the Steem blockchain and crypto in general to businesses.
Here are my quick thoughts on explaining Steem Power and delegation (in layman terms) to people that know little about Steem.
Steem Power - is a way for long term Steem holders to (1) receive interest on their Steem (2) have influence (voting power) on the platform. The trade off is that they need to 'lock up' their Steem for a period of time.
Delegation - is a mechanism of donating Steem Power to another person or company. You don't lose control of your Steem, you merely transfer the influence (and interest) to someone else.
Delegation opens up new opportunities for Steem investors to spread their influence and fund projects whilst retaining their principal capital.
For example, delegating Steem could be an alternative way of Crowdfunding that gives a greater level of control to the donator.
E.g. instead of pledging $1,000 to a project as you would on say Kickstarter, I could delegate 10,000 Steem. The project can use the additional influence (and interest) to help it grow. I can make my delegation contingent on the project hitting its milestones and adjust the level of my delegation accordingly. After six months, a year, two years (whatever period I like) I can withdraw the delegation, keep the Steem Power myself or delegate else way.
All the best!