To an extent, yes. The dose-dependent neural toxicity of meth is well established, as are the cardiovascular effects. However, in small amounts, used with moderation, for an otherwise healthy person, it's impact, long term, shouldn't be much different than someone who drinks a few extra glasses of wine most days, or smokes moderately.
Most people need to realize that when it comes to toxicology "the dose is the poison" is the absolute truth. With a few exceptions, almost everything in small doses is not particularly harmful in moderation over time and an otherwise healthy person can handle it since the body is designed to deal with a certain amount of damage on a regular basis. The exception to the "dose" rule is anything that is NOEL (No Observable Effects Limit), which is science/medical speak for something that is absolutely harmful with no known amount being safe regardless of how small. This is a very limited category of materials and phenomena that most people would rarely if ever be exposed to.
This is why, in a very limited set of circumstances, methamphetamine is actually used in medicine. So is cocaine. Opiates are another good example. It's why some medicine are actual poisons, such as digitalis. The biggest problem in medicine is that humans each have an addictive potential and we currently have no way to know what that is for a given person, which is a major issue. So, someone can be exposed to something in a reasonable dose and they become severely addicted to it, while another person who is very similar finds it has no addictive potential for them at all. Until we know how to detect that risk, a person's addictive potential is unknown until they are exposed, and for some people that initial exposure can be all it takes.