It would take quite a while to drive to the ER on a lawn mower. You're supposed to call the ambulance /s

Reminds me of Bryan Cantrill's Fork Yeah talk about the acquisition of Sun by Oracle

this seems a bit besides my point, but perhaps i am not as deeply into this topic as you. how about the baker at the end of the street. making bread for people, selling it at a profit margin which just allows him/her to continue their work as a non super rich person. (replace baker with barber or whatever). i dont see this as unethical. am i wrong?

But if you take that point of view, there are ethical dilemmas in pretty much everything.

Which then makes this viewpoint not that useful at all.

And this issue already been long summed up as “nothing is free in life.”

I don't think for example capitalism is always dilemmas. If someone choses to work for you, they chose to accept such a salary and participate. Its not some bad thing. If you truly pay them an unfair wage, they can chose not to participate. This might sound harsh, but people always have a choice. I work for an employer, i don't think its unfair simply because my boss is turning a profit. I am happy and thankful i have the job. If i didn't want it, there's plenty of space in the rainforest to try and forage for food (and yes i wouldn't last a day :P).

You might not like something, but does it really make it a dilemma in the sense of 'having to pick which of the 2 bulls horns will impale you?' - i don't think so. (interesting points though, and perhaps i am still missing your point!)

The lawn mower is not a business. It is a piece of machinery. The business that designed the lawn mower can ensure the design is safe, at least within reason, through the proper engineering of the product and by instructing its users on the proper use and maintenance of the machine. There is nothing inherently unethical about manufacturing lawnmowers unless you consider the practice of mowing lawns unethical (which there are legitimate arguments for, but I don't think that was your point).

There may be no ethical businesses, but some are definitely better than others. All the more reason to make a difference.