What are some additional benefits of being an Army officer?

Actually you don't have health and dental insurance for yourself unless you're a Reservist, active duty you are covered by tricare for free. There's also tuition assistance if you're pursuing a degree or certificate. Military discounts aren't an Army benefit, that's something individual businesses may or may not offer at their discretion. VA home loan will allow you to purchase a home with zero money down, it's a great option if you can't put together enough for a down payment. You can transfer your GI Bill to your children if you stay in long enough, which is great because you can get all the school you need yourself in the Army for free. There are opportunities to attend advanced education like the Army War College. You can also use space A travel to travel the world pretty cheaply.

If you are counting on these things exclusively you are doing it for the wrong reasons.

It is a privilege to lead America’s dons and daughters. Make yourself worthy of this.

The Army gives you leadership and management opportunities you wouldn’t see as a civilian in your first 7-10 years. You’ll lead 30 people and be responsible for millions in equipment. You’ll potentially make life and death decisions. Your peers will generally be responsible for themselves and three feet around themselves. If they are really good and potentially hop jobs a few times, might lead a team of 3-5 people. People I went to grad school with could not fathom I led an organization of 300 people as a Company Commander.

Other than getting paid more which will lead to a higher retirement income if you make the military a career I can't really think of any additional benefits of being an officer over enlisted.