Maybe we need to think beyond the effect on races, and what might be the effect on cycling. Prize money is, I believe, a relatively small part of the budget consideration for teams and for individuals, so the lack of races is not a great cost to teams and riders (although I suspect that many support staff are casually employed, and will be hard hit
But it is a huge hit in terms of the one thing that bike racing does offer: exposure (of sponsors' products to their markets, and of riders to prospective employers)
Teams exist because sponsors see it as a way of buying exposure: if they have financially committed to the outlay in 2020 and get very little exposure, then for all that they will recognise that this has not been a typical year (in cycling or in any sport, or in business) they are more likely to think twice about renewing their sponsorship in future.
And for the riders whose contracts are up, and will have little opportunity to impress, this will be a big hit. I can imagine it to be particularly so for those in their early 30s, maybe who had a disappointing 2019 and were relying on making an impression in 2020 to extend their careers. Or young riders (who are not in the Bernal/Evenepoel/Pogacar/Higuita bracket), who saw this as the year to prove that they are worth a grown-up squad rider's salary.
Fewer races will have a huge potential impact beyond our loss of entertainment: I fear that many careers, and teams, may not survive it. A rapid return to the programme will of course mitigate this, but if those who say that it will be autumn at best, and maybe next year, before there is a return are correct, then the sport may take years to recover.
Please assure me I am being unduly pessimistic...