I'm actually impressed by the amount of abuse our Oracle instances are able take from our developers.
Massive amounts of parallel single reads and writes with millisecond responses mixed with mega-joins of incorrectly indexed tables that works flawlessly "on their machine" that limp on well enough to sneak past performance testing with just the planner silently writhing in agony.
The original question does discount the capability of Oracle's database too much, as only something "golf executives" buy. When you have a large problem that is best solved with a relational model, Oracle delivers and can indeed be worth all the money and license hell involved.
Massive amounts of parallel single reads and writes with millisecond responses mixed with mega-joins of incorrectly indexed tables that works flawlessly "on their machine" that limp on well enough to sneak past performance testing with just the planner silently writhing in agony.