You may read this as if ‘appointed’ equals election. That could be what Paul means; it would be a correct thought, but here it is quite a weak word: ‘God has not placed us …’ At the end of verse 8 he speaks of hope.
Why are we saved? In order that we can have a nice time here in this world? There is nothing worse than books that get us thinking like this. God did not save us for this. He wants us to be those who are awake to his purposes in this world and living to promote his cause.