I think so. Cigarettes are enjoyable and Oxycodone is on the World Health Organization's Essential Medicine list.[1] You can also drive your Tesla off a cliff, or attack someone with a knife you bought from Amazon. The possibility of risky behavior doesn't necessarily make a thing useless.

In the interest of full disclosure I enjoy the occasional cigar.

[1] https://en.m.wikipedia.org/wiki/Oxycodone