I’ve just spent a couple of months living in Thailand, so I can give you an anecdotal response. However, as you will see, it’s not necessarily definitive.
My general impression is that religion there is not in your face at all, but does very subtly influence day-to-day life, behaviour, and opinions, though many of these I would define as culturally based, rather than religious, though of course there’d be crossover.
I was on an island off the south-west of Thailand. It is about 80% Muslim, 15% Buddhist, and 5% Christian/whatever expatriates.
The impression I got with both the Muslims (of whom I only ever saw 5 or 6 attending the mosque, out of a population of a couple of thousand) and the Buddhists (for whom there was no temple), was that their religion influenced their behaviour within certain strict rules, but they were largely governed by a) their culture, and b) superstition that did not directly relate to their religion, and probably dates from pre-Buddhist animism.
Examples:
Buddhist friends were indeed laissez-faire, but had certain rules - no touching of the head, don’t put your feet anywhere near anything at all unless you want to disrespect it, no women were allowed to sit on the front of a boat.
Muslim friends would allow us to come into their house drunk, but not to bring non-ingested alcohol inside. We were allowed, if we wished, to leave the booze outside and go out to have a drink there when we wanted, much as a smoker might go for a cigarette outside in the West.
Both the Muslims and the Buddhists would take a nickname (changeable, as well, which was confusing), because of a belief that bad spirits can take a person whose name is known. And indeed, unless it was a woman with a headscarf - which was entirely optional and the decision of the woman herself - you really couldn’t tell what religion someone practiced.
As for:
No, not really any different. Well, different, but equally shitty in parts. OK, law and order didn’t degenerate after the tsunami like we saw reported after Katrina, but I’d put this down to societal ideas of respect, rather than religion. Generally there were both amazing acts of compassion, and a small number of assholes. E.g. after the tsunami, there were isolated cases of complete disrespect for the dead - jewellery being stripped from still-warm bodies, and pirates coming to the island the night after the disaster to go looting; on the flipside there were thousands of acts of heroism that I can’t even list here without getting all choked up.
Regarding other issues in Thailand, pre-tsunami, the king chose to try to counter Muslim terrorism in the south of Thailand by air-dropping millions of origami peace cranes on the affected areas, which could be seen as somewhat Buddhist in intent and practice. (The effect? Jack shit. The killing still continues.) Compare that, however, with the totally extrajudicial Thai shoot-to-kill policy on drug dealers, which now has a death toll in the mid-thousands.
In conclusion, therefore, with the above confused post, I’d largely say “not really”. Hope that clears things up. 