Unfortunately for most it is not laziness but a twisted variation of a fashion 'sense'. The pants that don't fit and need to be pulled up, is a fashion statement. The skin tight, flaring, outfits are often considered "˜style' as well. This trend translates in formal wear. These are the styles of my peers, styles of my acquaintances as and in some cases, friends. Although they are all good people inside, on the outside they often tend to look like quite funny.
This is, of course, just a reflection of your particular tastes. Apart from comfort, and even that is relative (otherwise, we might all be wearing velour tracksuits everywhere - hey, Juicy Couture.) there are no real absolutes in style or fashion. Our ideas of what looks good and what looks bad are a product of biological intuitions (of this first, I have only secondhand evidence, but I am sure of it) mediated by cultural perceptions. Certainly, "correct fit" is a chimera if I've ever seen one. Personally, I think that if everything fits too perfectly, and if everything matches, I immediately think "uptight dillhole", and probably wouldn't want to hang out with that guy. Not to say that I like the look of a 160 lb guy wearing a 44L suit; but let's just agree that we don't like the look, and not go so far as to say that the look objectively sucks.