Flowers? are purely to make a beautiful shabbos table. It makes me feel good because my house looks calm and shabbosdig. That’s called Hanaoh Lkovod Shabbos. An armani suit is more for others to see how beautiful you look.
Can’t really explain it, but there’s a huge difference between the two.
(And btw, we do wear special beautiful Shabbos clothes. But the Shabbos doesn’t really care if your suit cost $50 or $500!)