Here the polytheists are addressed, that should they not think that God's respite is good for them, and some success in this material life, in their strength, rank, and wealth, is a reason that God is pleased with them, and that they are among the good ones.
This verse is also an answer to some indirect questions that may arise in some simple minds that; Why should a group of cruel and sinful men be drowned in such abundance of bunty, and luxuriances? the verse implies that these people are not amendable, and if there is any freedom of will, God naturally leaves them to themselves, so that the cup of their inequity may be full. The natural consequence of sinning is that the sinner sinks deeper and deeper into sin like one who enters a lagoon.
Of course this is not, what our Merciful Lord wants for any of His servants, but what then, if the Grace of God is intentionally rejected? Increase in sin, and insist on wrong, will make the dreadful consequences of sin plainer and more clear for those who otherwise might take lesson. So the working of God's Law is both just and Merciful. In other word God's mill grinds slow but sure, and their sins give them rope to hang themselves!