I'd go beyond that and even say that one might consider something harmful, but be willing to endure a certain level of harm in pursuit of something of higher value.

For example, I once asked a smoker why she smoked, and the response was "because I love it" -- when I asked if the enjoyment was worth the health risks, she said "yes; I never planned to live forever". She was making a conscious decision to seek short-term pleasure at the cost of potential longer-term damage to her health. At that point, there wasn't really anything remaining to debate about.